139575 has 12 divisors (see below), whose sum is σ = 230888. Its totient is φ = 74400.

The previous prime is 139571. The next prime is 139589. The reversal of 139575 is 575931.

It is a happy number.

It is not a de Polignac number, because 139575 - 2² = 139571 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 (139571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 856 + ... + 1005.

2¹³⁹⁵⁷⁵ is an apocalyptic number.

139575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139575 is a deficient number, since it is larger than the sum of its proper divisors (91313).

139575 is a wasteful number, since it uses less digits than its factorization.

139575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1869 counting only the distinct ones).

The product of its digits is 4725, while the sum is 30.

The square root of 139575 is about 373.5973768645. The cubic root of 139575 is about 51.8723446650.

The spelling of 139575 in words is "one hundred thirty-nine thousand, five hundred seventy-five".