115212165 has 8 divisors (see below), whose sum is σ = 184339488. Its totient is φ = 61446480.

The previous prime is 115212161. The next prime is 115212233. The reversal of 115212165 is 561212511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115212165 - 2² = 115212161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115212161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840391 + ... + 3840420.

It is an arithmetic number, because the mean of its divisors is an integer number (23042436).

Almost surely, 2^115212165 is an apocalyptic number.

115212165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

115212165 is a deficient number, since it is larger than the sum of its proper divisors (69127323).

115212165 is an equidigital number, since it uses as much as digits as its factorization.

115212165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680819.

The product of its digits is 600, while the sum is 24.

The square root of 115212165 is about 10733.6929805170. The cubic root of 115212165 is about 486.5932863549.

Adding to 115212165 its reverse (561212511), we get a palindrome (676424676).

The spelling of 115212165 in words is "one hundred fifteen million, two hundred twelve thousand, one hundred sixty-five".