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144131 = 1311087
BaseRepresentation
bin100011001100000011
321022201012
4203030003
514103011
63031135
71140131
oct431403
9238635
10144131
1199319
126b4ab
13507b0
143a751
152ca8b
hex23303

144131 has 4 divisors (see below), whose sum is σ = 155232. Its totient is φ = 133032.

The previous prime is 144103. The next prime is 144139. The reversal of 144131 is 131441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144131 - 210 = 143107 is a prime.

It is a super-2 number, since 2×1441312 = 41547490322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5531 + ... + 5556.

It is an arithmetic number, because the mean of its divisors is an integer number (38808).

2144131 is an apocalyptic number.

144131 is a deficient number, since it is larger than the sum of its proper divisors (11101).

144131 is a wasteful number, since it uses less digits than its factorization.

144131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100.

The product of its digits is 48, while the sum is 14.

The square root of 144131 is about 379.6458876374. The cubic root of 144131 is about 52.4307173780.

Adding to 144131 its reverse (131441), we get a palindrome (275572).

The spelling of 144131 in words is "one hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 13 11087 144131