115140445 has 24 divisors (see below), whose sum is σ = 161496504. Its totient is φ = 78575616.

The previous prime is 115140419. The next prime is 115140449. The reversal of 115140445 is 544041511.

It can be written as a sum of positive squares in 4 ways, for example, as 13816089 + 101324356 = 3717^2 + 10066^2 .

It is not a de Polignac number, because 115140445 - 2⁵ = 115140413 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 (115140449) 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, 56077 + ... + 58093.

It is an arithmetic number, because the mean of its divisors is an integer number (6729021).

Almost surely, 2^115140445 is an apocalyptic number.

It is an amenable number.

115140445 is a deficient number, since it is larger than the sum of its proper divisors (46356059).

115140445 is a wasteful number, since it uses less digits than its factorization.

115140445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 115140445 is about 10730.3515785831. The cubic root of 115140445 is about 486.4922966881.

Adding to 115140445 its reverse (544041511), we get a palindrome (659181956).

The spelling of 115140445 in words is "one hundred fifteen million, one hundred forty thousand, four hundred forty-five".