139219975 has 6 divisors (see below), whose sum is σ = 172632800. Its totient is φ = 111375960.

The previous prime is 139219963. The next prime is 139220027. The reversal of 139219975 is 579912931.

It is not a de Polignac number, because 139219975 - 2¹¹ = 139217927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2784375 + ... + 2784424.

Almost surely, 2^139219975 is an apocalyptic number.

139219975 is a deficient number, since it is larger than the sum of its proper divisors (33412825).

139219975 is an equidigital number, since it uses as much as digits as its factorization.

139219975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5568809 (or 5568804 counting only the distinct ones).

The product of its digits is 153090, while the sum is 46.

The square root of 139219975 is about 11799.1514525410. The cubic root of 139219975 is about 518.2832623844.

The spelling of 139219975 in words is "one hundred thirty-nine million, two hundred nineteen thousand, nine hundred seventy-five".