139475 has 12 divisors (see below), whose sum is σ = 197904. Its totient is φ = 95520.

The previous prime is 139459. The next prime is 139483. The reversal of 139475 is 574931.

It is not a de Polignac number, because 139475 - 2⁴ = 139459 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 3⁷ + 4³ + 9⁵ + 7² + 5⁷ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224 + ... + 573.

It is an arithmetic number, because the mean of its divisors is an integer number (16492).

2¹³⁹⁴⁷⁵ is an apocalyptic number.

139475 is a deficient number, since it is larger than the sum of its proper divisors (58429).

139475 is an equidigital number, since it uses as much as digits as its factorization.

139475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 809 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 139475 is about 373.4635189681. The cubic root of 139475 is about 51.8599535401.

The spelling of 139475 in words is "one hundred thirty-nine thousand, four hundred seventy-five".