612900164 has 6 divisors (see below), whose sum is σ = 1072575294. Its totient is φ = 306450080.

The previous prime is 612900131. The next prime is 612900179. The reversal of 612900164 is 461009216.

It can be written as a sum of positive squares in only one way, i.e., 472714564 + 140185600 = 21742^2 + 11840^2 .

It is a super-2 number, since 2×612900164² = 751293222062453792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76612517 + ... + 76612524.

It is an arithmetic number, because the mean of its divisors is an integer number (178762549).

Almost surely, 2^612900164 is an apocalyptic number.

It is an amenable number.

612900164 is a deficient number, since it is larger than the sum of its proper divisors (459675130).

612900164 is a wasteful number, since it uses less digits than its factorization.

612900164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153225045 (or 153225043 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 612900164 is about 24756.8205551521. The cubic root of 612900164 is about 849.4345323224.

The spelling of 612900164 in words is "six hundred twelve million, nine hundred thousand, one hundred sixty-four".