138762108 has 36 divisors (see below), whose sum is σ = 351180648. Its totient is φ = 46198560.

The previous prime is 138762101. The next prime is 138762119. The reversal of 138762108 is 801267831.

138762108 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 (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138762101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37510 + ... + 41042.

It is an arithmetic number, because the mean of its divisors is an integer number (9755018).

Almost surely, 2^138762108 is an apocalyptic number.

138762108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

138762108 is an abundant number, since it is smaller than the sum of its proper divisors (212418540).

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

138762108 is a wasteful number, since it uses less digits than its factorization.

138762108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4629 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 138762108 is about 11779.7329341543. The cubic root of 138762108 is about 517.7144612757.

The spelling of 138762108 in words is "one hundred thirty-eight million, seven hundred sixty-two thousand, one hundred eight".