30935561 has 2 divisors, whose sum is σ = 30935562. Its totient is φ = 30935560.

The previous prime is 30935539. The next prime is 30935587. The reversal of 30935561 is 16553903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18011536 + 12924025 = 4244^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 30935561 - 2⁶ = 30935497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30935761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15467780 + 15467781.

It is an arithmetic number, because the mean of its divisors is an integer number (15467781).

Almost surely, 2^30935561 is an apocalyptic number.

It is an amenable number.

30935561 is a deficient number, since it is larger than the sum of its proper divisors (1).

30935561 is an equidigital number, since it uses as much as digits as its factorization.

30935561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 30935561 is about 5561.9745594528. The cubic root of 30935561 is about 313.9202503461.

The spelling of 30935561 in words is "thirty million, nine hundred thirty-five thousand, five hundred sixty-one".