616624136 has 32 divisors (see below), whose sum is σ = 1226181240. Its totient is φ = 289701888.

The previous prime is 616624123. The next prime is 616624147. The reversal of 616624136 is 631426616.

It can be written as a sum of positive squares in 4 ways, for example, as 552720100 + 63904036 = 23510^2 + 7994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 616624096 and 616624105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88160 + ... + 94896.

Almost surely, 2^616624136 is an apocalyptic number.

It is an amenable number.

616624136 is a deficient number, since it is larger than the sum of its proper divisors (609557104).

616624136 is a wasteful number, since it uses less digits than its factorization.

616624136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433 (or 7429 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 616624136 is about 24831.9176867192. The cubic root of 616624136 is about 851.1514434267.

The spelling of 616624136 in words is "six hundred sixteen million, six hundred twenty-four thousand, one hundred thirty-six".