139056 has 20 divisors (see below), whose sum is σ = 359352. Its totient is φ = 46336.

The previous prime is 139033. The next prime is 139067. The reversal of 139056 is 650931.

It is a super-2 number, since 2×139056² = 38673142272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401 + ... + 1496.

2¹³⁹⁰⁵⁶ is an apocalyptic number.

139056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139056 is an abundant number, since it is smaller than the sum of its proper divisors (220296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139056 is a wasteful number, since it uses less digits than its factorization.

139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 139056 is about 372.9021319328. The cubic root of 139056 is about 51.8079702310.

Adding to 139056 its reverse (650931), we get a palindrome (789987).

The spelling of 139056 in words is "one hundred thirty-nine thousand, fifty-six".