139289080 has 32 divisors (see below), whose sum is σ = 358172640. Its totient is φ = 47756160.

The previous prime is 139289071. The next prime is 139289099. The reversal of 139289080 is 80982931.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248451 + ... + 249010.

It is an arithmetic number, because the mean of its divisors is an integer number (11192895).

Almost surely, 2^139289080 is an apocalyptic number.

139289080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139289080 is an abundant number, since it is smaller than the sum of its proper divisors (218883560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139289080 is a wasteful number, since it uses less digits than its factorization.

139289080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497479 (or 497475 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 139289080 is about 11802.0794777870. The cubic root of 139289080 is about 518.3690020934.

The spelling of 139289080 in words is "one hundred thirty-nine million, two hundred eighty-nine thousand, eighty".