30371969 has 2 divisors, whose sum is σ = 30371970. Its totient is φ = 30371968.

The previous prime is 30371963. The next prime is 30371987. The reversal of 30371969 is 96917303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 4494400 = 5087^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 30371969 - 2²⁴ = 13594753 is a prime.

It is a super-2 number, since 2×30371969² = 1844913001873922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30371963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15185984 + 15185985.

It is an arithmetic number, because the mean of its divisors is an integer number (15185985).

Almost surely, 2^30371969 is an apocalyptic number.

It is an amenable number.

30371969 is a deficient number, since it is larger than the sum of its proper divisors (1).

30371969 is an equidigital number, since it uses as much as digits as its factorization.

30371969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 30371969 is about 5511.0769364980. The cubic root of 30371969 is about 312.0021949495.

The spelling of 30371969 in words is "thirty million, three hundred seventy-one thousand, nine hundred sixty-nine".