138565902174 has 32 divisors (see below), whose sum is σ = 335352773376. Its totient is φ = 37261418880.

The previous prime is 138565902173. The next prime is 138565902193. The reversal of 138565902174 is 471209565831.

138565902174 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138565902173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97034232 + ... + 97035659.

It is an arithmetic number, because the mean of its divisors is an integer number (10479774168).

It is a 1-persistent number, because it is pandigital, but 2⋅138565902174 = 277131804348 is not.

Almost surely, 2^138565902174 is an apocalyptic number.

138565902174 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138565902174 is an abundant number, since it is smaller than the sum of its proper divisors (196786871202).

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

138565902174 is a wasteful number, since it uses less digits than its factorization.

138565902174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194069920.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 138565902174 in words is "one hundred thirty-eight billion, five hundred sixty-five million, nine hundred two thousand, one hundred seventy-four".