657148934 has 64 divisors (see below), whose sum is σ = 1159972800. Its totient is φ = 276576768.

The previous prime is 657148879. The next prime is 657148937. The reversal of 657148934 is 439841756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657148937) by changing a digit.

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, 2869532 + ... + 2869760.

It is an arithmetic number, because the mean of its divisors is an integer number (18124575).

Almost surely, 2^657148934 is an apocalyptic number.

657148934 is a deficient number, since it is larger than the sum of its proper divisors (502823866).

657148934 is a wasteful number, since it uses less digits than its factorization.

657148934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its digits is 725760, while the sum is 47.

The square root of 657148934 is about 25634.9163056952. The cubic root of 657148934 is about 869.4032698400.

The spelling of 657148934 in words is "six hundred fifty-seven million, one hundred forty-eight thousand, nine hundred thirty-four".