215015113 has 2 divisors, whose sum is σ = 215015114. Its totient is φ = 215015112.

The previous prime is 215015107. The next prime is 215015123. The reversal of 215015113 is 311510512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214710409 + 304704 = 14653^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 215015113 - 2⁹ = 215014601 is a prime.

It is not a weakly prime, because it can be changed into another prime (215015123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107507556 + 107507557.

It is an arithmetic number, because the mean of its divisors is an integer number (107507557).

Almost surely, 2^215015113 is an apocalyptic number.

It is an amenable number.

215015113 is a deficient number, since it is larger than the sum of its proper divisors (1).

215015113 is an equidigital number, since it uses as much as digits as its factorization.

215015113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 215015113 is about 14663.3936385818. The cubic root of 215015113 is about 599.0866780363.

Adding to 215015113 its reverse (311510512), we get a palindrome (526525625).

The spelling of 215015113 in words is "two hundred fifteen million, fifteen thousand, one hundred thirteen".