651631152 has 20 divisors (see below), whose sum is σ = 1683380600. Its totient is φ = 217210368.

The previous prime is 651631117. The next prime is 651631217. The reversal of 651631152 is 251136156.

It is a super-3 number, since 3×651631152³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6787777 + ... + 6787872.

It is an arithmetic number, because the mean of its divisors is an integer number (84169030).

Almost surely, 2^651631152 is an apocalyptic number.

It is an amenable number.

651631152 is an abundant number, since it is smaller than the sum of its proper divisors (1031749448).

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

651631152 is a wasteful number, since it uses less digits than its factorization.

651631152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13575660 (or 13575654 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 651631152 is about 25527.0670465684. The cubic root of 651631152 is about 866.9630988606.

The spelling of 651631152 in words is "six hundred fifty-one million, six hundred thirty-one thousand, one hundred fifty-two".