612530972 has 6 divisors (see below), whose sum is σ = 1071929208. Its totient is φ = 306265484.

The previous prime is 612530959. The next prime is 612530977. The reversal of 612530972 is 279035216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612530977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76566368 + ... + 76566375.

It is an arithmetic number, because the mean of its divisors is an integer number (178654868).

Almost surely, 2^612530972 is an apocalyptic number.

It is an amenable number.

612530972 is a deficient number, since it is larger than the sum of its proper divisors (459398236).

612530972 is a wasteful number, since it uses less digits than its factorization.

612530972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153132747 (or 153132745 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 612530972 is about 24749.3630625113. The cubic root of 612530972 is about 849.2639404154.

The spelling of 612530972 in words is "six hundred twelve million, five hundred thirty thousand, nine hundred seventy-two".