138479735 has 8 divisors (see below), whose sum is σ = 166902720. Its totient is φ = 110299104.

The previous prime is 138479729. The next prime is 138479767. The reversal of 138479735 is 537974831.

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

It is a cyclic number.

It is not a de Polignac number, because 138479735 - 2¹² = 138475639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138479735.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59327 + ... + 61616.

It is an arithmetic number, because the mean of its divisors is an integer number (20862840).

Almost surely, 2^138479735 is an apocalyptic number.

138479735 is a deficient number, since it is larger than the sum of its proper divisors (28422985).

138479735 is a wasteful number, since it uses less digits than its factorization.

138479735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121177.

The product of its digits is 635040, while the sum is 47.

The square root of 138479735 is about 11767.7412870950. The cubic root of 138479735 is about 517.3630496361.

It can be divided in two parts, 13 and 8479735, that added together give a palindrome (8479748).

The spelling of 138479735 in words is "one hundred thirty-eight million, four hundred seventy-nine thousand, seven hundred thirty-five".