139006975 has 6 divisors (see below), whose sum is σ = 172368680. Its totient is φ = 111205560.

The previous prime is 139006949. The next prime is 139006979. The reversal of 139006975 is 579600931.

It is not a de Polignac number, because 139006975 - 2¹⁵ = 138974207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139006979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2780115 + ... + 2780164.

Almost surely, 2^139006975 is an apocalyptic number.

139006975 is a deficient number, since it is larger than the sum of its proper divisors (33361705).

139006975 is an equidigital number, since it uses as much as digits as its factorization.

139006975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560289 (or 5560284 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 139006975 is about 11790.1219247300. The cubic root of 139006975 is about 518.0188111513.

The spelling of 139006975 in words is "one hundred thirty-nine million, six thousand, nine hundred seventy-five".