30713249 has 16 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 26107200.

The previous prime is 30713239. The next prime is 30713279. The reversal of 30713249 is 94231703.

It is not a de Polignac number, because 30713249 - 2²⁴ = 13936033 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30713239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51497 + ... + 52089.

It is an arithmetic number, because the mean of its divisors is an integer number (2257200).

Almost surely, 2^30713249 is an apocalyptic number.

It is an amenable number.

30713249 is a deficient number, since it is larger than the sum of its proper divisors (5401951).

30713249 is an equidigital number, since it uses as much as digits as its factorization.

30713249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 30713249 is about 5541.9535364346. The cubic root of 30713249 is about 313.1664675368.

The spelling of 30713249 in words is "thirty million, seven hundred thirteen thousand, two hundred forty-nine".