72574134 has 16 divisors (see below), whose sum is σ = 145394688. Its totient is φ = 24150312.

The previous prime is 72574123. The next prime is 72574147. The reversal of 72574134 is 43147527.

It is a junction number, because it is equal to n+sod(n) for n = 72574095 and 72574104.

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 7 ways as a sum of consecutive naturals, for example, 6322 + ... + 13605.

It is an arithmetic number, because the mean of its divisors is an integer number (9087168).

Almost surely, 2^72574134 is an apocalyptic number.

72574134 is an abundant number, since it is smaller than the sum of its proper divisors (72820554).

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

72574134 is a wasteful number, since it uses less digits than its factorization.

72574134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20539.

The product of its digits is 23520, while the sum is 33.

The square root of 72574134 is about 8519.0453690540. The cubic root of 72574134 is about 417.1196224738.

The spelling of 72574134 in words is "seventy-two million, five hundred seventy-four thousand, one hundred thirty-four".