30611149 has 2 divisors, whose sum is σ = 30611150. Its totient is φ = 30611148.

The previous prime is 30611131. The next prime is 30611159. The reversal of 30611149 is 94111603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 1397124 = 5405^2 + 1182^2 .

It is a cyclic number.

It is not a de Polignac number, because 30611149 - 2⁹ = 30610637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30611159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15305574 + 15305575.

It is an arithmetic number, because the mean of its divisors is an integer number (15305575).

Almost surely, 2^30611149 is an apocalyptic number.

It is an amenable number.

30611149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30611149 is an equidigital number, since it uses as much as digits as its factorization.

30611149 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 25.

The square root of 30611149 is about 5532.7343149658. The cubic root of 30611149 is about 312.8190627126.

The spelling of 30611149 in words is "thirty million, six hundred eleven thousand, one hundred forty-nine".