651136312 has 16 divisors (see below), whose sum is σ = 1292697360. Its totient is φ = 306417024.

The previous prime is 651136303. The next prime is 651136319. The reversal of 651136312 is 213631156.

It is a super-2 number, since 2×651136312² = 847956993609922688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651136319) 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, 2393748 + ... + 2394019.

It is an arithmetic number, because the mean of its divisors is an integer number (80793585).

Almost surely, 2^651136312 is an apocalyptic number.

It is an amenable number.

651136312 is a deficient number, since it is larger than the sum of its proper divisors (641561048).

651136312 is a wasteful number, since it uses less digits than its factorization.

651136312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787790 (or 4787786 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 651136312 is about 25517.3727487765. The cubic root of 651136312 is about 866.7435898850.

Adding to 651136312 its reverse (213631156), we get a palindrome (864767468).

The spelling of 651136312 in words is "six hundred fifty-one million, one hundred thirty-six thousand, three hundred twelve".