115111959 has 8 divisors (see below), whose sum is σ = 158433792. Its totient is φ = 74265720.

The previous prime is 115111889. The next prime is 115111961. The reversal of 115111959 is 959111511.

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

It is not a de Polignac number, because 115111959 - 2¹⁶ = 115046423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115111999) 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, 618789 + ... + 618974.

It is an arithmetic number, because the mean of its divisors is an integer number (19804224).

Almost surely, 2^115111959 is an apocalyptic number.

115111959 is a deficient number, since it is larger than the sum of its proper divisors (43321833).

115111959 is a wasteful number, since it uses less digits than its factorization.

115111959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237797.

The product of its digits is 2025, while the sum is 33.

The square root of 115111959 is about 10729.0241401537. The cubic root of 115111959 is about 486.4521736234.

The spelling of 115111959 in words is "one hundred fifteen million, one hundred eleven thousand, nine hundred fifty-nine".