651647132 has 12 divisors (see below), whose sum is σ = 1189964496. Its totient is φ = 311657280.

The previous prime is 651647131. The next prime is 651647141. The reversal of 651647132 is 231746156.

It is a junction number, because it is equal to n+sod(n) for n = 651647092 and 651647101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651647131) 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, 3541469 + ... + 3541652.

It is an arithmetic number, because the mean of its divisors is an integer number (99163708).

Almost surely, 2^651647132 is an apocalyptic number.

It is an amenable number.

651647132 is a deficient number, since it is larger than the sum of its proper divisors (538317364).

651647132 is a wasteful number, since it uses less digits than its factorization.

651647132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083148 (or 7083146 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 651647132 is about 25527.3800457470. The cubic root of 651647132 is about 866.9701856699.

The spelling of 651647132 in words is "six hundred fifty-one million, six hundred forty-seven thousand, one hundred thirty-two".