115402213 has 4 divisors (see below), whose sum is σ = 115684780. Its totient is φ = 115119648.

The previous prime is 115402211. The next prime is 115402229. The reversal of 115402213 is 312204511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111894084 + 3508129 = 10578^2 + 1873^2 .

It is a cyclic number.

It is not a de Polignac number, because 115402213 - 2¹ = 115402211 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 (115402211) 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, 140670 + ... + 141487.

It is an arithmetic number, because the mean of its divisors is an integer number (28921195).

Almost surely, 2^115402213 is an apocalyptic number.

It is an amenable number.

115402213 is a deficient number, since it is larger than the sum of its proper divisors (282567).

115402213 is an equidigital number, since it uses as much as digits as its factorization.

115402213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282566.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 115402213 is about 10742.5422037803. The cubic root of 115402213 is about 486.8606923750.

Adding to 115402213 its reverse (312204511), we get a palindrome (427606724).

The spelling of 115402213 in words is "one hundred fifteen million, four hundred two thousand, two hundred thirteen".