115586213 has 4 divisors (see below), whose sum is σ = 122385420. Its totient is φ = 108787008.

The previous prime is 115586171. The next prime is 115586227. The reversal of 115586213 is 312685511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312685511 = 29 ⋅10782259.

It can be written as a sum of positive squares in 2 ways, for example, as 99960004 + 15626209 = 9998^2 + 3953^2 .

It is a cyclic number.

It is not a de Polignac number, because 115586213 - 2⁸ = 115585957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115586213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115586413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399578 + ... + 3399611.

It is an arithmetic number, because the mean of its divisors is an integer number (30596355).

Almost surely, 2^115586213 is an apocalyptic number.

It is an amenable number.

115586213 is a deficient number, since it is larger than the sum of its proper divisors (6799207).

115586213 is an equidigital number, since it uses as much as digits as its factorization.

115586213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799206.

The product of its digits is 7200, while the sum is 32.

The square root of 115586213 is about 10751.1028736591. The cubic root of 115586213 is about 487.1193090180.

It can be divided in two parts, 11558 and 6213, that added together give a palindrome (17771).

The spelling of 115586213 in words is "one hundred fifteen million, five hundred eighty-six thousand, two hundred thirteen".