115017974449 has 9 divisors (see below), whose sum is σ = 133799180907. Its totient is φ = 98584800384.

The previous prime is 115017974437. The next prime is 115017974473. The reversal of 115017974449 is 944479710511.

The square root of 115017974449 is 339143.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114553140849 + 464833600 = 338457^2 + 21560^2 .

It is not a de Polignac number, because 115017974449 - 2¹¹ = 115017972401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115017974396 and 115017974405.

It is not an unprimeable number, because it can be changed into a prime (115017974249) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2349777 + ... + 2398225.

Almost surely, 2^115017974449 is an apocalyptic number.

115017974449 is the 339143-rd square number.

115017974449 is the 169572-nd centered octagonal number.

It is an amenable number.

115017974449 is a deficient number, since it is larger than the sum of its proper divisors (18781206458).

115017974449 is an frugal number, since it uses more digits than its factorization.

115017974449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96912 (or 48456 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 115017974449 in words is "one hundred fifteen billion, seventeen million, nine hundred seventy-four thousand, four hundred forty-nine".