139632 has 20 divisors (see below), whose sum is σ = 360840. Its totient is φ = 46528.

The previous prime is 139627. The next prime is 139661. The reversal of 139632 is 236931.

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

It is a d-powerful number, because it can be written as 1 + 3³ + 6⁵ + 9³ + 3³ + 2¹⁷ .

It is a congruent number.

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, 1407 + ... + 1502.

It is an arithmetic number, because the mean of its divisors is an integer number (18042).

2¹³⁹⁶³² is an apocalyptic number.

139632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139632 is an abundant number, since it is smaller than the sum of its proper divisors (221208).

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

139632 is a wasteful number, since it uses less digits than its factorization.

139632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 2914 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

The square root of 139632 is about 373.6736544098. The cubic root of 139632 is about 51.8794049581.

Adding to 139632 its sum of digits (24), we get a triangular number (139656 = T₅₂₈).

The spelling of 139632 in words is "one hundred thirty-nine thousand, six hundred thirty-two".