80139507 has 8 divisors (see below), whose sum is σ = 122117376. Its totient is φ = 45793992.

The previous prime is 80139497. The next prime is 80139509. The reversal of 80139507 is 70593108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80139507 - 2⁴ = 80139491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80139509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1908063 + ... + 1908104.

It is an arithmetic number, because the mean of its divisors is an integer number (15264672).

Almost surely, 2^80139507 is an apocalyptic number.

80139507 is a deficient number, since it is larger than the sum of its proper divisors (41977869).

80139507 is a wasteful number, since it uses less digits than its factorization.

80139507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816177.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 80139507 is about 8952.0671914368. The cubic root of 80139507 is about 431.1372581571.

The spelling of 80139507 in words is "eighty million, one hundred thirty-nine thousand, five hundred seven".