651045051 has 12 divisors (see below), whose sum is σ = 989893320. Its totient is φ = 411186240.

The previous prime is 651045047. The next prime is 651045067. The reversal of 651045051 is 150540156.

It is a happy number.

651045051 is a `hidden beast` number, since 651 + 0 + 4 + 5 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 651045051 - 2² = 651045047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (651045001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1903470 + ... + 1903811.

It is an arithmetic number, because the mean of its divisors is an integer number (82491110).

Almost surely, 2^651045051 is an apocalyptic number.

651045051 is a deficient number, since it is larger than the sum of its proper divisors (338848269).

651045051 is a wasteful number, since it uses less digits than its factorization.

651045051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3807306 (or 3807303 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 651045051 is about 25515.5844730235. The cubic root of 651045051 is about 866.7030947377.

The spelling of 651045051 in words is "six hundred fifty-one million, forty-five thousand, fifty-one".