115421251 has 8 divisors (see below), whose sum is σ = 127029744. Its totient is φ = 103998720.

The previous prime is 115421239. The next prime is 115421281. The reversal of 115421251 is 152124511.

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 115421251 - 2⁷ = 115421123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115421231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45186 + ... + 47671.

It is an arithmetic number, because the mean of its divisors is an integer number (15878718).

Almost surely, 2^115421251 is an apocalyptic number.

115421251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115421251 is a deficient number, since it is larger than the sum of its proper divisors (11608493).

115421251 is a wasteful number, since it uses less digits than its factorization.

115421251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92981.

The product of its digits is 400, while the sum is 22.

The square root of 115421251 is about 10743.4282703428. The cubic root of 115421251 is about 486.8874635086.

Adding to 115421251 its reverse (152124511), we get a palindrome (267545762).

The spelling of 115421251 in words is "one hundred fifteen million, four hundred twenty-one thousand, two hundred fifty-one".