115133919 has 16 divisors (see below), whose sum is σ = 157981824. Its totient is φ = 74541600.

The previous prime is 115133881. The next prime is 115133923. The reversal of 115133919 is 919331511.

It is not a de Polignac number, because 115133919 - 2⁸ = 115133663 is a prime.

It is a super-2 number, since 2×115133919² = 26511638608597122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115133919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115133959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20884 + ... + 25814.

It is an arithmetic number, because the mean of its divisors is an integer number (9873864).

Almost surely, 2^115133919 is an apocalyptic number.

115133919 is a deficient number, since it is larger than the sum of its proper divisors (42847905).

115133919 is a wasteful number, since it uses less digits than its factorization.

115133919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158.

The product of its digits is 3645, while the sum is 33.

The square root of 115133919 is about 10730.0474835855. The cubic root of 115133919 is about 486.4831052792.

The spelling of 115133919 in words is "one hundred fifteen million, one hundred thirty-three thousand, nine hundred nineteen".