138369562 has 8 divisors (see below), whose sum is σ = 219763476. Its totient is φ = 65115072.

The previous prime is 138369509. The next prime is 138369563. The reversal of 138369562 is 265963831.

138369562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138274081 + 95481 = 11759^2 + 309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×138369562² = 38292271376143688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138369563) 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, 2034813 + ... + 2034880.

Almost surely, 2^138369562 is an apocalyptic number.

138369562 is a deficient number, since it is larger than the sum of its proper divisors (81393914).

138369562 is a wasteful number, since it uses less digits than its factorization.

138369562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069712.

The product of its digits is 233280, while the sum is 43.

The square root of 138369562 is about 11763.0592109366. The cubic root of 138369562 is about 517.2258103931.

The spelling of 138369562 in words is "one hundred thirty-eight million, three hundred sixty-nine thousand, five hundred sixty-two".