115214421 has 32 divisors (see below), whose sum is σ = 181916928. Its totient is φ = 63498240.

The previous prime is 115214413. The next prime is 115214441. The reversal of 115214421 is 124412511.

It is not a de Polignac number, because 115214421 - 2³ = 115214413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115214441) 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 31 ways as a sum of consecutive naturals, for example, 67045 + ... + 68741.

It is an arithmetic number, because the mean of its divisors is an integer number (5684904).

Almost surely, 2^115214421 is an apocalyptic number.

It is an amenable number.

115214421 is a deficient number, since it is larger than the sum of its proper divisors (66702507).

115214421 is a wasteful number, since it uses less digits than its factorization.

115214421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821.

The product of its digits is 320, while the sum is 21.

The square root of 115214421 is about 10733.7980696490. The cubic root of 115214421 is about 486.5964623716.

Adding to 115214421 its reverse (124412511), we get a palindrome (239626932).

The spelling of 115214421 in words is "one hundred fifteen million, two hundred fourteen thousand, four hundred twenty-one".