616306172 has 12 divisors (see below), whose sum is σ = 1079479296. Its totient is φ = 307883520.

The previous prime is 616306139. The next prime is 616306177. The reversal of 616306172 is 271603616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616306177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62204 + ... + 71427.

It is an arithmetic number, because the mean of its divisors is an integer number (89956608).

Almost surely, 2^616306172 is an apocalyptic number.

It is an amenable number.

616306172 is a deficient number, since it is larger than the sum of its proper divisors (463173124).

616306172 is a wasteful number, since it uses less digits than its factorization.

616306172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134788 (or 134786 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 616306172 is about 24825.5145364603. The cubic root of 616306172 is about 851.0051187139.

Adding to 616306172 its reverse (271603616), we get a palindrome (887909788).

The spelling of 616306172 in words is "six hundred sixteen million, three hundred six thousand, one hundred seventy-two".