142156755 has 32 divisors (see below), whose sum is σ = 272166720. Its totient is φ = 69984000.

The previous prime is 142156741. The next prime is 142156757. The reversal of 142156755 is 557651241.

142156755 is a `hidden beast` number, since 1 + 42 + 1 + 567 + 55 = 666.

142156755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142156755 - 2⁶ = 142156691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142156757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38746 + ... + 42255.

It is an arithmetic number, because the mean of its divisors is an integer number (8505210).

Almost surely, 2^142156755 is an apocalyptic number.

142156755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

142156755 is a deficient number, since it is larger than the sum of its proper divisors (130009965).

142156755 is a wasteful number, since it uses less digits than its factorization.

142156755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81028 (or 81022 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 142156755 is about 11922.9507673227. The cubic root of 142156755 is about 521.9022475166.

The spelling of 142156755 in words is "one hundred forty-two million, one hundred fifty-six thousand, seven hundred fifty-five".