142155135 has 32 divisors (see below), whose sum is σ = 256296960. Its totient is φ = 74743200.

The previous prime is 142155133. The next prime is 142155197. The reversal of 142155135 is 531551241.

142155135 is a `hidden beast` number, since 142 + 1 + 5 + 513 + 5 = 666.

It is not a de Polignac number, because 142155135 - 2¹ = 142155133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142155099 and 142155108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142155133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2170 + ... + 17000.

It is an arithmetic number, because the mean of its divisors is an integer number (8009280).

Almost surely, 2^142155135 is an apocalyptic number.

142155135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142155135 is a deficient number, since it is larger than the sum of its proper divisors (114141825).

142155135 is a wasteful number, since it uses less digits than its factorization.

142155135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14916 (or 14910 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 142155135 is about 11922.8828309264. The cubic root of 142155135 is about 521.9002649989.

The spelling of 142155135 in words is "one hundred forty-two million, one hundred fifty-five thousand, one hundred thirty-five".