139135632 has 120 divisors (see below), whose sum is σ = 394037280. Its totient is φ = 42163200.

The previous prime is 139135627. The next prime is 139135637. The reversal of 139135632 is 236531931.

It is an interprime number because it is at equal distance from previous prime (139135627) and next prime (139135637).

It is a junction number, because it is equal to n+sod(n) for n = 139135593 and 139135602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139135637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2280882 + ... + 2280942.

It is an arithmetic number, because the mean of its divisors is an integer number (3283644).

Almost surely, 2^139135632 is an apocalyptic number.

139135632 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 139135632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197018640).

139135632 is an abundant number, since it is smaller than the sum of its proper divisors (254901648).

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

139135632 is a wasteful number, since it uses less digits than its factorization.

139135632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 126 counting only the distinct ones).

The product of its digits is 14580, while the sum is 33.

The square root of 139135632 is about 11795.5767981053. The cubic root of 139135632 is about 518.1785781828.

The spelling of 139135632 in words is "one hundred thirty-nine million, one hundred thirty-five thousand, six hundred thirty-two".