651139152 has 40 divisors (see below), whose sum is σ = 1683448800. Its totient is φ = 216873600.

The previous prime is 651139129. The next prime is 651139169. The reversal of 651139152 is 251931156.

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, 64974 + ... + 74322.

It is an arithmetic number, because the mean of its divisors is an integer number (42086220).

Almost surely, 2^651139152 is an apocalyptic number.

It is an amenable number.

651139152 is an abundant number, since it is smaller than the sum of its proper divisors (1032309648).

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

651139152 is a wasteful number, since it uses less digits than its factorization.

651139152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811 (or 10805 counting only the distinct ones).

The product of its digits is 8100, while the sum is 33.

The square root of 651139152 is about 25517.4283970779. The cubic root of 651139152 is about 866.7448500145.

The spelling of 651139152 in words is "six hundred fifty-one million, one hundred thirty-nine thousand, one hundred fifty-two".