115421759 has 12 divisors (see below), whose sum is σ = 120720600. Its totient is φ = 110321568.

The previous prime is 115421749. The next prime is 115421849. The reversal of 115421759 is 957124511.

It is a happy number.

It is not a de Polignac number, because 115421759 - 2⁴ = 115421743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115421749) 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, 80057 + ... + 81485.

It is an arithmetic number, because the mean of its divisors is an integer number (10060050).

Almost surely, 2^115421759 is an apocalyptic number.

115421759 is a deficient number, since it is larger than the sum of its proper divisors (5298841).

115421759 is an equidigital number, since it uses as much as digits as its factorization.

115421759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1525 counting only the distinct ones).

The product of its digits is 12600, while the sum is 35.

The square root of 115421759 is about 10743.4519126769. The cubic root of 115421759 is about 486.8881778152. Note that the first 3 decimals are identical.

The spelling of 115421759 in words is "one hundred fifteen million, four hundred twenty-one thousand, seven hundred fifty-nine".