30513713 has 4 divisors (see below), whose sum is σ = 31565940. Its totient is φ = 29461488.

The previous prime is 30513667. The next prime is 30513719. The reversal of 30513713 is 31731503.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12730624 + 17783089 = 3568^2 + 4217^2 .

It is a cyclic number.

It is not a de Polignac number, because 30513713 - 2⁶ = 30513649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30513719) 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, 526070 + ... + 526127.

It is an arithmetic number, because the mean of its divisors is an integer number (7891485).

Almost surely, 2^30513713 is an apocalyptic number.

It is an amenable number.

30513713 is a deficient number, since it is larger than the sum of its proper divisors (1052227).

30513713 is a wasteful number, since it uses less digits than its factorization.

30513713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052226.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 30513713 is about 5523.9218857620. The cubic root of 30513713 is about 312.4868064830.

The spelling of 30513713 in words is "thirty million, five hundred thirteen thousand, seven hundred thirteen".