612365216 has 12 divisors (see below), whose sum is σ = 1205594082. Its totient is φ = 306182592.

The previous prime is 612365191. The next prime is 612365251. The reversal of 612365216 is 612563216.

It can be written as a sum of positive squares in only one way, i.e., 595555216 + 16810000 = 24404^2 + 4100^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 19136413 = 612365216 / (6 + 1 + 2 + 3 + 6 + 5 + 2 + 1 + 6).

It is an alternating number because its digits alternate between even and odd.

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 as a sum of consecutive naturals, namely, 9568175 + ... + 9568238.

Almost surely, 2^612365216 is an apocalyptic number.

It is an amenable number.

612365216 is a deficient number, since it is larger than the sum of its proper divisors (593228866).

612365216 is a wasteful number, since it uses less digits than its factorization.

612365216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136423 (or 19136415 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 612365216 is about 24746.0141436959. The cubic root of 612365216 is about 849.1873275310.

The spelling of 612365216 in words is "six hundred twelve million, three hundred sixty-five thousand, two hundred sixteen".