115131345 has 16 divisors (see below), whose sum is σ = 210526080. Its totient is φ = 52631424.

The previous prime is 115131283. The next prime is 115131349. The reversal of 115131345 is 543131511.

It is not a de Polignac number, because 115131345 - 2⁶ = 115131281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115131349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548140 + ... + 548349.

It is an arithmetic number, because the mean of its divisors is an integer number (13157880).

Almost surely, 2^115131345 is an apocalyptic number.

115131345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115131345 is a deficient number, since it is larger than the sum of its proper divisors (95394735).

115131345 is a wasteful number, since it uses less digits than its factorization.

115131345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096504.

The product of its digits is 900, while the sum is 24.

The square root of 115131345 is about 10729.9275393639. The cubic root of 115131345 is about 486.4794798870.

Adding to 115131345 its reverse (543131511), we get a palindrome (658262856).

The spelling of 115131345 in words is "one hundred fifteen million, one hundred thirty-one thousand, three hundred forty-five".