651637132 has 12 divisors (see below), whose sum is σ = 1207445400. Its totient is φ = 306652736.

The previous prime is 651637111. The next prime is 651637139. The reversal of 651637132 is 231736156.

651637132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (651637139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4791382 + ... + 4791517.

It is an arithmetic number, because the mean of its divisors is an integer number (100620450).

Almost surely, 2^651637132 is an apocalyptic number.

It is an amenable number.

651637132 is a deficient number, since it is larger than the sum of its proper divisors (555808268).

651637132 is a wasteful number, since it uses less digits than its factorization.

651637132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9582920 (or 9582918 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 651637132 is about 25527.1841768731. The cubic root of 651637132 is about 866.9657508841.

The spelling of 651637132 in words is "six hundred fifty-one million, six hundred thirty-seven thousand, one hundred thirty-two".