30323139 has 32 divisors (see below), whose sum is σ = 50803200. Its totient is φ = 15628800.

The previous prime is 30323119. The next prime is 30323141. The reversal of 30323139 is 93132303.

It is not a de Polignac number, because 30323139 - 2⁷ = 30323011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30323119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33979 + ... + 34859.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 2^30323139 is an apocalyptic number.

30323139 is a deficient number, since it is larger than the sum of its proper divisors (20480061).

30323139 is a wasteful number, since it uses less digits than its factorization.

30323139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its (nonzero) digits is 1458, while the sum is 24.

The square root of 30323139 is about 5506.6449858330. The cubic root of 30323139 is about 311.8348999116.

The spelling of 30323139 in words is "thirty million, three hundred twenty-three thousand, one hundred thirty-nine".