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142655 = 5103277
BaseRepresentation
bin100010110100111111
321020200112
4202310333
514031110
63020235
71132622
oct426477
9236615
10142655
11981a7
126a67b
134cc16
1439db9
152c405
hex22d3f

142655 has 8 divisors (see below), whose sum is σ = 173472. Its totient is φ = 112608.

The previous prime is 142619. The next prime is 142657. The reversal of 142655 is 556241.

Added to its reverse (556241) it gives a square (698896 = 8362).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142655 - 26 = 142591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142655.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142655.

It is not an unprimeable number, because it can be changed into a prime (142657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (21684).

2142655 is an apocalyptic number.

142655 is a deficient number, since it is larger than the sum of its proper divisors (30817).

142655 is a wasteful number, since it uses less digits than its factorization.

142655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 1200, while the sum is 23.

The square root of 142655 is about 377.6969684813. The cubic root of 142655 is about 52.2511274682.

Adding to 142655 its reverse (556241), we get a palindrome (698896).

It can be divided in two parts, 142 and 655, that added together give a palindrome (797).

The spelling of 142655 in words is "one hundred forty-two thousand, six hundred fifty-five".

Divisors: 1 5 103 277 515 1385 28531 142655