138710132 has 24 divisors (see below), whose sum is σ = 273944160. Its totient is φ = 60875360.

The previous prime is 138710129. The next prime is 138710137. The reversal of 138710132 is 231017831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138710137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53078 + ... + 55629.

It is an arithmetic number, because the mean of its divisors is an integer number (11414340).

Almost surely, 2^138710132 is an apocalyptic number.

It is an amenable number.

138710132 is a deficient number, since it is larger than the sum of its proper divisors (135234028).

138710132 is a wasteful number, since it uses less digits than its factorization.

138710132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108751 (or 108749 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 138710132 is about 11777.5265654551. The cubic root of 138710132 is about 517.6498132541.

Adding to 138710132 its reverse (231017831), we get a palindrome (369727963).

The spelling of 138710132 in words is "one hundred thirty-eight million, seven hundred ten thousand, one hundred thirty-two".