115240515421 has 8 divisors (see below), whose sum is σ = 117755719488. Its totient is φ = 112750092000.

The previous prime is 115240515419. The next prime is 115240515427. The reversal of 115240515421 is 124515042511.

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 115240515421 - 2¹ = 115240515419 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 (115240515427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6185760 + ... + 6204361.

It is an arithmetic number, because the mean of its divisors is an integer number (14719464936).

Almost surely, 2^115240515421 is an apocalyptic number.

It is an amenable number.

115240515421 is a deficient number, since it is larger than the sum of its proper divisors (2515204067).

115240515421 is a wasteful number, since it uses less digits than its factorization.

115240515421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390323.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 115240515421 its reverse (124515042511), we get a palindrome (239755557932).

The spelling of 115240515421 in words is "one hundred fifteen billion, two hundred forty million, five hundred fifteen thousand, four hundred twenty-one".