115269609 has 40 divisors (see below), whose sum is σ = 193246592. Its totient is φ = 60752160.

The previous prime is 115269607. The next prime is 115269617. The reversal of 115269609 is 906962511.

It is not a de Polignac number, because 115269609 - 2¹ = 115269607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (115269607) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 93024 + ... + 94254.

Almost surely, 2^115269609 is an apocalyptic number.

It is an amenable number.

115269609 is a deficient number, since it is larger than the sum of its proper divisors (77976983).

115269609 is an equidigital number, since it uses as much as digits as its factorization.

115269609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 115269609 is about 10736.3685201282. The cubic root of 115269609 is about 486.6741436165.

The spelling of 115269609 in words is "one hundred fifteen million, two hundred sixty-nine thousand, six hundred nine".