30645102 has 16 divisors (see below), whose sum is σ = 62947152. Its totient is φ = 9938880.

The previous prime is 30645089. The next prime is 30645137. The reversal of 30645102 is 20154603.

It is a happy number.

It is a congruent number.

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, 68799 + ... + 69242.

It is an arithmetic number, because the mean of its divisors is an integer number (3934197).

Almost surely, 2^30645102 is an apocalyptic number.

30645102 is an abundant number, since it is smaller than the sum of its proper divisors (32302050).

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

30645102 is a wasteful number, since it uses less digits than its factorization.

30645102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138083.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30645102 is about 5535.8018389390. The cubic root of 30645102 is about 312.9346765930.

Adding to 30645102 its reverse (20154603), we get a palindrome (50799705).

The spelling of 30645102 in words is "thirty million, six hundred forty-five thousand, one hundred two".