612765530 has 64 divisors (see below), whose sum is σ = 1232437248. Its totient is φ = 217831680.

The previous prime is 612765521. The next prime is 612765533. The reversal of 612765530 is 35567216.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (612765533) 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 in 31 ways as a sum of consecutive naturals, for example, 1543292 + ... + 1543688.

It is an arithmetic number, because the mean of its divisors is an integer number (19256832).

Almost surely, 2^612765530 is an apocalyptic number.

612765530 is an abundant number, since it is smaller than the sum of its proper divisors (619671718).

612765530 is a wasteful number, since it uses less digits than its factorization.

612765530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 612765530 is about 24754.1012763542. The cubic root of 612765530 is about 849.3723301616.

The spelling of 612765530 in words is "six hundred twelve million, seven hundred sixty-five thousand, five hundred thirty".