30150961 has 2 divisors, whose sum is σ = 30150962. Its totient is φ = 30150960.

The previous prime is 30150919. The next prime is 30150973. The reversal of 30150961 is 16905103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 4840000 = 5031^2 + 2200^2 .

It is an emirp because it is prime and its reverse (16905103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30150961 - 2⁷ = 30150833 is a prime.

It is not a weakly prime, because it can be changed into another prime (30150161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15075480 + 15075481.

It is an arithmetic number, because the mean of its divisors is an integer number (15075481).

Almost surely, 2^30150961 is an apocalyptic number.

It is an amenable number.

30150961 is a deficient number, since it is larger than the sum of its proper divisors (1).

30150961 is an equidigital number, since it uses as much as digits as its factorization.

30150961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 30150961 is about 5490.9890730177. The cubic root of 30150961 is about 311.2435687343.

The spelling of 30150961 in words is "thirty million, one hundred fifty thousand, nine hundred sixty-one".