115493021 has 16 divisors (see below), whose sum is σ = 136836480. Its totient is φ = 95411520.

The previous prime is 115493009. The next prime is 115493041. The reversal of 115493021 is 120394511.

It is a cyclic number.

It is not a de Polignac number, because 115493021 - 2⁶ = 115492957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115493041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26186 + ... + 30276.

It is an arithmetic number, because the mean of its divisors is an integer number (8552280).

Almost surely, 2^115493021 is an apocalyptic number.

It is an amenable number.

115493021 is a deficient number, since it is larger than the sum of its proper divisors (21343459).

115493021 is a wasteful number, since it uses less digits than its factorization.

115493021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 115493021 is about 10746.7679327321. The cubic root of 115493021 is about 486.9883596395.

The spelling of 115493021 in words is "one hundred fifteen million, four hundred ninety-three thousand, twenty-one".