115500775 has 24 divisors (see below), whose sum is σ = 154771344. Its totient is φ = 84998400.

The previous prime is 115500769. The next prime is 115500787. The reversal of 115500775 is 577005511.

It is not a de Polignac number, because 115500775 - 2¹⁷ = 115369703 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151395 + ... + 152155.

It is an arithmetic number, because the mean of its divisors is an integer number (6448806).

Almost surely, 2^115500775 is an apocalyptic number.

115500775 is a deficient number, since it is larger than the sum of its proper divisors (39270569).

115500775 is a wasteful number, since it uses less digits than its factorization.

115500775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 6125, while the sum is 31.

The square root of 115500775 is about 10747.1286863050. The cubic root of 115500775 is about 486.9992579120. Note that the first 3 decimals are identical.

The spelling of 115500775 in words is "one hundred fifteen million, five hundred thousand, seven hundred seventy-five".