672157134 has 24 divisors (see below), whose sum is σ = 1588735512. Its totient is φ = 203683920.

The previous prime is 672157117. The next prime is 672157139. The reversal of 672157134 is 431751276.

It is a happy number.

672157134 is a `hidden beast` number, since 67 + 21 + 571 + 3 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672157139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1697169 + ... + 1697564.

It is an arithmetic number, because the mean of its divisors is an integer number (66197313).

Almost surely, 2^672157134 is an apocalyptic number.

672157134 is an abundant number, since it is smaller than the sum of its proper divisors (916578378).

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

672157134 is a wasteful number, since it uses less digits than its factorization.

672157134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394752 (or 3394749 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 672157134 is about 25925.9934043037. The cubic root of 672157134 is about 875.9720936253.

The spelling of 672157134 in words is "six hundred seventy-two million, one hundred fifty-seven thousand, one hundred thirty-four".