651460212 has 48 divisors (see below), whose sum is σ = 1818895680. Its totient is φ = 200448864.

The previous prime is 651460169. The next prime is 651460219. The reversal of 651460212 is 212064156.

651460212 is a `hidden beast` number, since 6 + 51 + 4 + 602 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651460219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230598 + ... + 233405.

It is an arithmetic number, because the mean of its divisors is an integer number (37893660).

Almost surely, 2^651460212 is an apocalyptic number.

It is an amenable number.

651460212 is an abundant number, since it is smaller than the sum of its proper divisors (1167435468).

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

651460212 is a wasteful number, since it uses less digits than its factorization.

651460212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464029 (or 464021 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 651460212 is about 25523.7186162205. The cubic root of 651460212 is about 866.8872831519.

The spelling of 651460212 in words is "six hundred fifty-one million, four hundred sixty thousand, two hundred twelve".