139002975 has 18 divisors (see below), whose sum is σ = 248970176. Its totient is φ = 74134800.

The previous prime is 139002973. The next prime is 139002979. The reversal of 139002975 is 579200931.

It is not a de Polignac number, because 139002975 - 2¹ = 139002973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139002971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 308671 + ... + 309120.

Almost surely, 2^139002975 is an apocalyptic number.

139002975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139002975 is a deficient number, since it is larger than the sum of its proper divisors (109967201).

139002975 is a wasteful number, since it uses less digits than its factorization.

139002975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617807 (or 617799 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 139002975 is about 11789.9522899798. The cubic root of 139002975 is about 518.0138423476.

The spelling of 139002975 in words is "one hundred thirty-nine million, two thousand, nine hundred seventy-five".