612156136 has 32 divisors (see below), whose sum is σ = 1220688000. Its totient is φ = 286972416.

The previous prime is 612156131. The next prime is 612156161. The reversal of 612156136 is 631651216.

It is a junction number, because it is equal to n+sod(n) for n = 612156098 and 612156107.

It is not an unprimeable number, because it can be changed into a prime (612156131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6016 + ... + 35503.

It is an arithmetic number, because the mean of its divisors is an integer number (38146500).

Almost surely, 2^612156136 is an apocalyptic number.

It is an amenable number.

612156136 is a deficient number, since it is larger than the sum of its proper divisors (608531864).

612156136 is a wasteful number, since it uses less digits than its factorization.

612156136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41641 (or 41637 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 612156136 is about 24741.7892643196. The cubic root of 612156136 is about 849.0906704532.

The spelling of 612156136 in words is "six hundred twelve million, one hundred fifty-six thousand, one hundred thirty-six".