115212565 has 8 divisors (see below), whose sum is σ = 148890168. Its totient is φ = 85080000.

The previous prime is 115212533. The next prime is 115212569. The reversal of 115212565 is 565212511.

It can be written as a sum of positive squares in 4 ways, for example, as 101124 + 115111441 = 318^2 + 10729^2 .

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

It is not a de Polignac number, because 115212565 - 2⁵ = 115212533 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 (115212569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886186 + ... + 886315.

It is an arithmetic number, because the mean of its divisors is an integer number (18611271).

Almost surely, 2^115212565 is an apocalyptic number.

It is an amenable number.

115212565 is a deficient number, since it is larger than the sum of its proper divisors (33677603).

115212565 is a wasteful number, since it uses less digits than its factorization.

115212565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772519.

The product of its digits is 3000, while the sum is 28.

The square root of 115212565 is about 10733.7116134169. The cubic root of 115212565 is about 486.5938494815.

The spelling of 115212565 in words is "one hundred fifteen million, two hundred twelve thousand, five hundred sixty-five".