115224213 has 16 divisors (see below), whose sum is σ = 168973056. Its totient is φ = 69397440.

The previous prime is 115224209. The next prime is 115224217. The reversal of 115224213 is 312422511.

It is an interprime number because it is at equal distance from previous prime (115224209) and next prime (115224217).

It is not a de Polignac number, because 115224213 - 2² = 115224209 is a prime.

It is a super-2 number, since 2×115224213² = 26553238522938738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115224213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115224217) 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, 29598 + ... + 33263.

It is an arithmetic number, because the mean of its divisors is an integer number (10560816).

Almost surely, 2^115224213 is an apocalyptic number.

115224213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

115224213 is a deficient number, since it is larger than the sum of its proper divisors (53748843).

115224213 is a wasteful number, since it uses less digits than its factorization.

115224213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62924.

The product of its digits is 480, while the sum is 21.

The square root of 115224213 is about 10734.2541892765. The cubic root of 115224213 is about 486.6102471552.

Adding to 115224213 its reverse (312422511), we get a palindrome (427646724).

The spelling of 115224213 in words is "one hundred fifteen million, two hundred twenty-four thousand, two hundred thirteen".