115224312131540 has 24 divisors (see below), whose sum is σ = 256204646975592. Its totient is φ = 43378564567040.

The previous prime is 115224312131531. The next prime is 115224312131597. The reversal of 115224312131540 is 45131213422511.

It can be written as a sum of positive squares in 4 ways, for example, as 8540491897744 + 106683820233796 = 2922412^2 + 10328786^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115224312131540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169447517501 + ... + 169447518180.

It is an arithmetic number, because the mean of its divisors is an integer number (10675193623983).

Almost surely, 2^{115224312131540} is an apocalyptic number.

115224312131540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115224312131540 is an abundant number, since it is smaller than the sum of its proper divisors (140980334844052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115224312131540 is a wasteful number, since it uses less digits than its factorization.

115224312131540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338895035707 (or 338895035705 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 115224312131540 in words is "one hundred fifteen trillion, two hundred twenty-four billion, three hundred twelve million, one hundred thirty-one thousand, five hundred forty".