651214028 has 24 divisors (see below), whose sum is σ = 1153633488. Its totient is φ = 321624576.

The previous prime is 651214013. The next prime is 651214033. The reversal of 651214028 is 820412156.

651214028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 139175 + ... + 143777.

It is an arithmetic number, because the mean of its divisors is an integer number (48068062).

Almost surely, 2^651214028 is an apocalyptic number.

It is an amenable number.

651214028 is a deficient number, since it is larger than the sum of its proper divisors (502419460).

651214028 is a wasteful number, since it uses less digits than its factorization.

651214028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033 (or 5031 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 651214028 is about 25518.8955090145. The cubic root of 651214028 is about 866.7780717407.

The spelling of 651214028 in words is "six hundred fifty-one million, two hundred fourteen thousand, twenty-eight".