139611139 has 8 divisors (see below), whose sum is σ = 141170688. Its totient is φ = 138056520.

The previous prime is 139611079. The next prime is 139611149. The reversal of 139611139 is 931116931.

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 139611139 - 2¹¹ = 139609091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139611149) 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, 94174 + ... + 95644.

It is an arithmetic number, because the mean of its divisors is an integer number (17646336).

Almost surely, 2^139611139 is an apocalyptic number.

139611139 is a deficient number, since it is larger than the sum of its proper divisors (1559549).

139611139 is a wasteful number, since it uses less digits than its factorization.

139611139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465.

The product of its digits is 4374, while the sum is 34.

The square root of 139611139 is about 11815.7157633382. The cubic root of 139611139 is about 518.7682123765.

The spelling of 139611139 in words is "one hundred thirty-nine million, six hundred eleven thousand, one hundred thirty-nine".