115140139 has 8 divisors (see below), whose sum is σ = 120821760. Its totient is φ = 109514856.

The previous prime is 115140119. The next prime is 115140163. The reversal of 115140139 is 931041511.

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 115140139 - 2⁹ = 115139627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115140119) 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, 9867 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (15102720).

Almost surely, 2^115140139 is an apocalyptic number.

115140139 is a deficient number, since it is larger than the sum of its proper divisors (5681621).

115140139 is a wasteful number, since it uses less digits than its factorization.

115140139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28169.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 115140139 is about 10730.3373199541. The cubic root of 115140139 is about 486.4918657165.

The spelling of 115140139 in words is "one hundred fifteen million, one hundred forty thousand, one hundred thirty-nine".