30613613 has 2 divisors, whose sum is σ = 30613614. Its totient is φ = 30613612.

The previous prime is 30613607. The next prime is 30613633. The reversal of 30613613 is 31631603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24571849 + 6041764 = 4957^2 + 2458^2 .

It is a cyclic number.

It is not a de Polignac number, because 30613613 - 2²⁴ = 13836397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30613633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15306806 + 15306807.

It is an arithmetic number, because the mean of its divisors is an integer number (15306807).

Almost surely, 2^30613613 is an apocalyptic number.

It is an amenable number.

30613613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30613613 is an equidigital number, since it uses as much as digits as its factorization.

30613613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30613613 is about 5532.9569851934. The cubic root of 30613613 is about 312.8274557928.

The spelling of 30613613 in words is "thirty million, six hundred thirteen thousand, six hundred thirteen".