30163949 has 2 divisors, whose sum is σ = 30163950. Its totient is φ = 30163948.

The previous prime is 30163937. The next prime is 30163979. The reversal of 30163949 is 94936103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29920900 + 243049 = 5470^2 + 493^2 .

It is a cyclic number.

It is not a de Polignac number, because 30163949 - 2²⁴ = 13386733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30163909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15081974 + 15081975.

It is an arithmetic number, because the mean of its divisors is an integer number (15081975).

Almost surely, 2^30163949 is an apocalyptic number.

It is an amenable number.

30163949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30163949 is an equidigital number, since it uses as much as digits as its factorization.

30163949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 30163949 is about 5492.1716105745. The cubic root of 30163949 is about 311.2882533372.

The spelling of 30163949 in words is "thirty million, one hundred sixty-three thousand, nine hundred forty-nine".