72755142 has 64 divisors (see below), whose sum is σ = 161568000. Its totient is φ = 21748608.

The previous prime is 72755119. The next prime is 72755153. The reversal of 72755142 is 24155727.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194868 + ... + 195240.

It is an arithmetic number, because the mean of its divisors is an integer number (2524500).

Almost surely, 2^72755142 is an apocalyptic number.

72755142 is an abundant number, since it is smaller than the sum of its proper divisors (88812858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72755142 is a wasteful number, since it uses less digits than its factorization.

72755142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its digits is 19600, while the sum is 33.

The square root of 72755142 is about 8529.6624786682. The cubic root of 72755142 is about 417.4661155523.

The spelling of 72755142 in words is "seventy-two million, seven hundred fifty-five thousand, one hundred forty-two".