30413209 has 2 divisors, whose sum is σ = 30413210. Its totient is φ = 30413208.

The previous prime is 30413189. The next prime is 30413213. The reversal of 30413209 is 90231403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 11923209 = 4300^2 + 3453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30413209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30413209.

It is not a weakly prime, because it can be changed into another prime (30413269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15206604 + 15206605.

It is an arithmetic number, because the mean of its divisors is an integer number (15206605).

Almost surely, 2^30413209 is an apocalyptic number.

It is an amenable number.

30413209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30413209 is an equidigital number, since it uses as much as digits as its factorization.

30413209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30413209 is about 5514.8172227192. The cubic root of 30413209 is about 312.1433464960.

The spelling of 30413209 in words is "thirty million, four hundred thirteen thousand, two hundred nine".