612130645 has 32 divisors (see below), whose sum is σ = 890915328. Its totient is φ = 394149888.

The previous prime is 612130633. The next prime is 612130661. The reversal of 612130645 is 546031216.

It is a cyclic number.

It is not a de Polignac number, because 612130645 - 2⁵ = 612130613 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 342424 + ... + 344206.

It is an arithmetic number, because the mean of its divisors is an integer number (27841104).

Almost surely, 2^612130645 is an apocalyptic number.

It is an amenable number.

612130645 is a deficient number, since it is larger than the sum of its proper divisors (278784683).

612130645 is a wasteful number, since it uses less digits than its factorization.

612130645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 612130645 is about 24741.2741183634. The cubic root of 612130645 is about 849.0788845327.

The spelling of 612130645 in words is "six hundred twelve million, one hundred thirty thousand, six hundred forty-five".