115209949 has 8 divisors (see below), whose sum is σ = 117828000. Its totient is φ = 112614192.

The previous prime is 115209947. The next prime is 115209961. The reversal of 115209949 is 949902511.

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

It is a cyclic number.

It is not a de Polignac number, because 115209949 - 2¹ = 115209947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115209947) 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, 5107 + ... + 16015.

It is an arithmetic number, because the mean of its divisors is an integer number (14728500).

Almost surely, 2^115209949 is an apocalyptic number.

It is an amenable number.

115209949 is a deficient number, since it is larger than the sum of its proper divisors (2618051).

115209949 is a wasteful number, since it uses less digits than its factorization.

115209949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 115209949 is about 10733.5897536658. The cubic root of 115209949 is about 486.5901666102.

The spelling of 115209949 in words is "one hundred fifteen million, two hundred nine thousand, nine hundred forty-nine".