215153052013 has 2 divisors, whose sum is σ = 215153052014. Its totient is φ = 215153052012.

The previous prime is 215153051969. The next prime is 215153052073. The reversal of 215153052013 is 310250351512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131375801764 + 83777250249 = 362458^2 + 289443^2 .

It is a cyclic number.

It is not a de Polignac number, because 215153052013 - 2²¹ = 215150954861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215153052073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107576526006 + 107576526007.

It is an arithmetic number, because the mean of its divisors is an integer number (107576526007).

Almost surely, 2^215153052013 is an apocalyptic number.

It is an amenable number.

215153052013 is a deficient number, since it is larger than the sum of its proper divisors (1).

215153052013 is an equidigital number, since it uses as much as digits as its factorization.

215153052013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 215153052013 in words is "two hundred fifteen billion, one hundred fifty-three million, fifty-two thousand, thirteen".