138485694 has 8 divisors (see below), whose sum is σ = 276971400. Its totient is φ = 46161896.

The previous prime is 138485687. The next prime is 138485719. The reversal of 138485694 is 496584831.

138485694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

138485694 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11540469 + ... + 11540480.

It is an arithmetic number, because the mean of its divisors is an integer number (34621425).

Almost surely, 2^138485694 is an apocalyptic number.

138485694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138485694 is a wasteful number, since it uses less digits than its factorization.

138485694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23080954.

The product of its digits is 829440, while the sum is 48.

The square root of 138485694 is about 11767.9944765453. The cubic root of 138485694 is about 517.3704705106.

It can be divided in two parts, 1384 and 85694, that added together give a palindrome (87078).

The spelling of 138485694 in words is "one hundred thirty-eight million, four hundred eighty-five thousand, six hundred ninety-four".