139252516111 has 4 divisors (see below), whose sum is σ = 139292684712. Its totient is φ = 139212347512.

The previous prime is 139252516099. The next prime is 139252516159. The reversal of 139252516111 is 111615252931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139252516111 - 2²⁷ = 139118298383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139252516511) 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, 20079100 + ... + 20086033.

It is an arithmetic number, because the mean of its divisors is an integer number (34823171178).

Almost surely, 2^139252516111 is an apocalyptic number.

139252516111 is a deficient number, since it is larger than the sum of its proper divisors (40168601).

139252516111 is an equidigital number, since it uses as much as digits as its factorization.

139252516111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40168600.

The product of its digits is 16200, while the sum is 37.

The spelling of 139252516111 in words is "one hundred thirty-nine billion, two hundred fifty-two million, five hundred sixteen thousand, one hundred eleven".