139863132 has 48 divisors (see below), whose sum is σ = 365965600. Its totient is φ = 46193328.

The previous prime is 139863127. The next prime is 139863149. The reversal of 139863132 is 231368931.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

139863132 is a `hidden beast` number, since 13 + 9 + 8 + 631 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283094 + ... + 1283202.

Almost surely, 2^139863132 is an apocalyptic number.

139863132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139863132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182982800).

139863132 is an abundant number, since it is smaller than the sum of its proper divisors (226102468).

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

139863132 is an frugal number, since it uses more digits than its factorization.

139863132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 114 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 139863132 is about 11826.3744232964. The cubic root of 139863132 is about 519.0801439936.

The spelling of 139863132 in words is "one hundred thirty-nine million, eight hundred sixty-three thousand, one hundred thirty-two".