30161712 has 40 divisors (see below), whose sum is σ = 89049856. Its totient is φ = 8617536.

The previous prime is 30161707. The next prime is 30161737. The reversal of 30161712 is 21716103.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 44548 + ... + 45219.

Almost surely, 2^30161712 is an apocalyptic number.

It is an amenable number.

30161712 is an abundant number, since it is smaller than the sum of its proper divisors (58888144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30161712 is a wasteful number, since it uses less digits than its factorization.

30161712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89785 (or 89779 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 30161712 is about 5491.9679532932. The cubic root of 30161712 is about 311.2805579585.

Adding to 30161712 its reverse (21716103), we get a palindrome (51877815).

The spelling of 30161712 in words is "thirty million, one hundred sixty-one thousand, seven hundred twelve".