30423539 has 2 divisors, whose sum is σ = 30423540. Its totient is φ = 30423538.

The previous prime is 30423529. The next prime is 30423563. The reversal of 30423539 is 93532403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30423539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30423529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15211769 + 15211770.

It is an arithmetic number, because the mean of its divisors is an integer number (15211770).

Almost surely, 2^30423539 is an apocalyptic number.

30423539 is a deficient number, since it is larger than the sum of its proper divisors (1).

30423539 is an equidigital number, since it uses as much as digits as its factorization.

30423539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 30423539 is about 5515.7537109628. The cubic root of 30423539 is about 312.1786828502.

The spelling of 30423539 in words is "thirty million, four hundred twenty-three thousand, five hundred thirty-nine".