30039131 has 2 divisors, whose sum is σ = 30039132. Its totient is φ = 30039130.

The previous prime is 30039103. The next prime is 30039199. The reversal of 30039131 is 13193003.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30039131 - 2¹⁴ = 30022747 is a prime.

It is a super-2 number, since 2×30039131² = 1804698782470322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30039431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15019565 + 15019566.

It is an arithmetic number, because the mean of its divisors is an integer number (15019566).

Almost surely, 2^30039131 is an apocalyptic number.

30039131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30039131 is an equidigital number, since it uses as much as digits as its factorization.

30039131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 30039131 is about 5480.7965661936. The cubic root of 30039131 is about 310.8582909152.

The spelling of 30039131 in words is "thirty million, thirty-nine thousand, one hundred thirty-one".