138871362 has 16 divisors (see below), whose sum is σ = 317420352. Its totient is φ = 39677520.

The previous prime is 138871357. The next prime is 138871363. The reversal of 138871362 is 263178831.

It is a self number, because there is not a number n which added to its sum of digits gives 138871362.

It is not an unprimeable number, because it can be changed into a prime (138871363) 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, 1653189 + ... + 1653272.

It is an arithmetic number, because the mean of its divisors is an integer number (19838772).

Almost surely, 2^138871362 is an apocalyptic number.

138871362 is an abundant number, since it is smaller than the sum of its proper divisors (178548990).

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

138871362 is a wasteful number, since it uses less digits than its factorization.

138871362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306473.

The product of its digits is 48384, while the sum is 39.

The square root of 138871362 is about 11784.3693933956. The cubic root of 138871362 is about 517.8502993617.

The spelling of 138871362 in words is "one hundred thirty-eight million, eight hundred seventy-one thousand, three hundred sixty-two".