30075131 has 2 divisors, whose sum is σ = 30075132. Its totient is φ = 30075130.

The previous prime is 30075127. The next prime is 30075137. The reversal of 30075131 is 13157003.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30075131 - 2² = 30075127 is a prime.

It is a super-2 number, since 2×30075131² = 1809027009334322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30075137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15037565 + 15037566.

It is an arithmetic number, because the mean of its divisors is an integer number (15037566).

Almost surely, 2^30075131 is an apocalyptic number.

30075131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30075131 is an equidigital number, since it uses as much as digits as its factorization.

30075131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 30075131 is about 5484.0797769544. The cubic root of 30075131 is about 310.9824226788.

The spelling of 30075131 in words is "thirty million, seventy-five thousand, one hundred thirty-one".