115421425 has 24 divisors (see below), whose sum is σ = 167060736. Its totient is φ = 77456640.

The previous prime is 115421419. The next prime is 115421459. The reversal of 115421425 is 524124511.

115421425 is nontrivially palindromic in base 15.

It is not a de Polignac number, because 115421425 - 2⁷ = 115421297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115421425.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1209 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (6960864).

Almost surely, 2^115421425 is an apocalyptic number.

It is an amenable number.

115421425 is a deficient number, since it is larger than the sum of its proper divisors (51639311).

115421425 is a wasteful number, since it uses less digits than its factorization.

115421425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14097 (or 14092 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 115421425 is about 10743.4363683134. The cubic root of 115421425 is about 486.8877081729.

Adding to 115421425 its reverse (524124511), we get a palindrome (639545936).

The spelling of 115421425 in words is "one hundred fifteen million, four hundred twenty-one thousand, four hundred twenty-five".