115243314553015 has 24 divisors (see below), whose sum is σ = 152203530324384. Its totient is φ = 83704893307200.

The previous prime is 115243314553013. The next prime is 115243314553063. The reversal of 115243314553015 is 510355413342511.

It is a happy number.

It is not a de Polignac number, because 115243314553015 - 2¹ = 115243314553013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115243314553013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122743731 + ... + 123679060.

It is an arithmetic number, because the mean of its divisors is an integer number (6341813763516).

Almost surely, 2^{115243314553015} is an apocalyptic number.

115243314553015 is a deficient number, since it is larger than the sum of its proper divisors (36960215771369).

115243314553015 is a wasteful number, since it uses less digits than its factorization.

115243314553015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246423591 (or 246423580 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 115243314553015 its reverse (510355413342511), we get a palindrome (625598727895526).

The spelling of 115243314553015 in words is "one hundred fifteen trillion, two hundred forty-three billion, three hundred fourteen million, five hundred fifty-three thousand, fifteen".