115406641 has 4 divisors (see below), whose sum is σ = 131893312. Its totient is φ = 98919972.

The previous prime is 115406633. The next prime is 115406671. The reversal of 115406641 is 146604511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115406641 - 2³ = 115406633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115406671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8243325 + ... + 8243338.

It is an arithmetic number, because the mean of its divisors is an integer number (32973328).

Almost surely, 2^115406641 is an apocalyptic number.

It is an amenable number.

115406641 is a deficient number, since it is larger than the sum of its proper divisors (16486671).

115406641 is an equidigital number, since it uses as much as digits as its factorization.

115406641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16486670.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 115406641 is about 10742.7482982708. The cubic root of 115406641 is about 486.8669192676.

It can be divided in two parts, 11540 and 6641, that added together give a palindrome (18181).

The spelling of 115406641 in words is "one hundred fifteen million, four hundred six thousand, six hundred forty-one".