115412445 has 20 divisors (see below), whose sum is σ = 206888220. Its totient is φ = 61553088.

The previous prime is 115412399. The next prime is 115412449. The reversal of 115412445 is 544214511.

It can be written as a sum of positive squares in 2 ways, for example, as 53538489 + 61873956 = 7317^2 + 7866^2 .

It is not a de Polignac number, because 115412445 - 2⁸ = 115412189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115412449) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 142080 + ... + 142889.

It is an arithmetic number, because the mean of its divisors is an integer number (10344411).

Almost surely, 2^115412445 is an apocalyptic number.

115412445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115412445 is a deficient number, since it is larger than the sum of its proper divisors (91475775).

115412445 is an equidigital number, since it uses as much as digits as its factorization.

115412445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284986 (or 284977 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 115412445 is about 10743.0184305902. The cubic root of 115412445 is about 486.8750809245.

Adding to 115412445 its reverse (544214511), we get a palindrome (659626956).

The spelling of 115412445 in words is "one hundred fifteen million, four hundred twelve thousand, four hundred forty-five".