115040661 has 12 divisors (see below), whose sum is σ = 155598816. Its totient is φ = 75603640.

The previous prime is 115040647. The next prime is 115040689. The reversal of 115040661 is 166040511.

It is not a de Polignac number, because 115040661 - 2¹³ = 115032469 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115040621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11320 + ... + 18926.

It is an arithmetic number, because the mean of its divisors is an integer number (12966568).

Almost surely, 2^115040661 is an apocalyptic number.

It is an amenable number.

115040661 is a deficient number, since it is larger than the sum of its proper divisors (40558155).

115040661 is an frugal number, since it uses more digits than its factorization.

115040661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7752 (or 7681 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 115040661 is about 10725.7009561147. The cubic root of 115040661 is about 486.3517200287.

The spelling of 115040661 in words is "one hundred fifteen million, forty thousand, six hundred sixty-one".