139094138 has 8 divisors (see below), whose sum is σ = 208692288. Its totient is φ = 69530044.

The previous prime is 139094113. The next prime is 139094141. The reversal of 139094138 is 831490931.

It is a happy number.

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

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, 8495 + ... + 18717.

It is an arithmetic number, because the mean of its divisors is an integer number (26086536).

Almost surely, 2^139094138 is an apocalyptic number.

139094138 is a deficient number, since it is larger than the sum of its proper divisors (69598150).

139094138 is a wasteful number, since it uses less digits than its factorization.

139094138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 139094138 is about 11793.8177872986. The cubic root of 139094138 is about 518.1270614496.

The spelling of 139094138 in words is "one hundred thirty-nine million, ninety-four thousand, one hundred thirty-eight".