139125775 has 6 divisors (see below), whose sum is σ = 172515992. Its totient is φ = 111300600.

The previous prime is 139125761. The next prime is 139125823. The reversal of 139125775 is 577521931.

It is not a de Polignac number, because 139125775 - 2⁷ = 139125647 is a prime.

It is a Duffinian number.

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, 2782491 + ... + 2782540.

Almost surely, 2^139125775 is an apocalyptic number.

139125775 is a deficient number, since it is larger than the sum of its proper divisors (33390217).

139125775 is an equidigital number, since it uses as much as digits as its factorization.

139125775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565041 (or 5565036 counting only the distinct ones).

The product of its digits is 66150, while the sum is 40.

The square root of 139125775 is about 11795.1589645922. The cubic root of 139125775 is about 518.1663411860.

The spelling of 139125775 in words is "one hundred thirty-nine million, one hundred twenty-five thousand, seven hundred seventy-five".