30139082 has 4 divisors (see below), whose sum is σ = 45208626. Its totient is φ = 15069540.

The previous prime is 30139069. The next prime is 30139097. The reversal of 30139082 is 28093103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18653761 + 11485321 = 4319^2 + 3389^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7534769 + ... + 7534772.

Almost surely, 2^30139082 is an apocalyptic number.

30139082 is a deficient number, since it is larger than the sum of its proper divisors (15069544).

30139082 is a wasteful number, since it uses less digits than its factorization.

30139082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15069543.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30139082 is about 5489.9072851916. The cubic root of 30139082 is about 311.2026883567.

The spelling of 30139082 in words is "thirty million, one hundred thirty-nine thousand, eighty-two".