115621575 has 48 divisors (see below), whose sum is σ = 201820416. Its totient is φ = 58291200.

The previous prime is 115621553. The next prime is 115621601. The reversal of 115621575 is 575126511.

It is a happy number.

It is not a de Polignac number, because 115621575 - 2⁶ = 115621511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 166980 + ... + 167670.

It is an arithmetic number, because the mean of its divisors is an integer number (4204592).

Almost surely, 2^115621575 is an apocalyptic number.

115621575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115621575 is a deficient number, since it is larger than the sum of its proper divisors (86198841).

115621575 is a wasteful number, since it uses less digits than its factorization.

115621575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 819 counting only the distinct ones).

The product of its digits is 10500, while the sum is 33.

The square root of 115621575 is about 10752.7473233588. The cubic root of 115621575 is about 487.1689797536.

The spelling of 115621575 in words is "one hundred fifteen million, six hundred twenty-one thousand, five hundred seventy-five".