72855134 has 16 divisors (see below), whose sum is σ = 123329520. Its totient is φ = 31973760.

The previous prime is 72855127. The next prime is 72855157. The reversal of 72855134 is 43155827.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72855094 and 72855103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56459 + ... + 57734.

It is an arithmetic number, because the mean of its divisors is an integer number (7708095).

Almost surely, 2^72855134 is an apocalyptic number.

72855134 is a deficient number, since it is larger than the sum of its proper divisors (50474386).

72855134 is a wasteful number, since it uses less digits than its factorization.

72855134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114235.

The product of its digits is 33600, while the sum is 35.

The square root of 72855134 is about 8535.5218938270. The cubic root of 72855134 is about 417.6572780452.

The spelling of 72855134 in words is "seventy-two million, eight hundred fifty-five thousand, one hundred thirty-four".