139923132 has 12 divisors (see below), whose sum is σ = 326487336. Its totient is φ = 46641040.

The previous prime is 139923083. The next prime is 139923137. The reversal of 139923132 is 231329931.

139923132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 139923093 and 139923102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139923137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830119 + ... + 5830142.

It is an arithmetic number, because the mean of its divisors is an integer number (27207278).

Almost surely, 2^139923132 is an apocalyptic number.

139923132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139923132 is an abundant number, since it is smaller than the sum of its proper divisors (186564204).

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

139923132 is a wasteful number, since it uses less digits than its factorization.

139923132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11660268 (or 11660266 counting only the distinct ones).

The product of its digits is 8748, while the sum is 33.

The square root of 139923132 is about 11828.9108543433. The cubic root of 139923132 is about 519.1543602545.

It can be divided in two parts, 1399 and 23132, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 139923132 in words is "one hundred thirty-nine million, nine hundred twenty-three thousand, one hundred thirty-two".