30613249 has 2 divisors, whose sum is σ = 30613250. Its totient is φ = 30613248.

The previous prime is 30613159. The next prime is 30613279. The reversal of 30613249 is 94231603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18662400 + 11950849 = 4320^2 + 3457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30613249 is a prime.

It is not a weakly prime, because it can be changed into another prime (30613279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15306624 + 15306625.

It is an arithmetic number, because the mean of its divisors is an integer number (15306625).

Almost surely, 2^30613249 is an apocalyptic number.

It is an amenable number.

30613249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30613249 is an equidigital number, since it uses as much as digits as its factorization.

30613249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30613249 is about 5532.9240912921. The cubic root of 30613249 is about 312.8262159343.

The spelling of 30613249 in words is "thirty million, six hundred thirteen thousand, two hundred forty-nine".