30136612 has 12 divisors (see below), whose sum is σ = 57533616. Its totient is φ = 13698440.

The previous prime is 30136609. The next prime is 30136627. The reversal of 30136612 is 21663103.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342418 + ... + 342505.

It is an arithmetic number, because the mean of its divisors is an integer number (4794468).

Almost surely, 2^30136612 is an apocalyptic number.

It is an amenable number.

30136612 is a deficient number, since it is larger than the sum of its proper divisors (27397004).

30136612 is a wasteful number, since it uses less digits than its factorization.

30136612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684938 (or 684936 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30136612 is about 5489.6823223207. The cubic root of 30136612 is about 311.1941867525.

Adding to 30136612 its reverse (21663103), we get a palindrome (51799715).

The spelling of 30136612 in words is "thirty million, one hundred thirty-six thousand, six hundred twelve".