215335013 has 4 divisors (see below), whose sum is σ = 220342848. Its totient is φ = 210327180.

The previous prime is 215335009. The next prime is 215335027. The reversal of 215335013 is 310533512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215335013 - 2² = 215335009 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 215335013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215335033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503853 + ... + 2503938.

It is an arithmetic number, because the mean of its divisors is an integer number (55085712).

Almost surely, 2^215335013 is an apocalyptic number.

It is an amenable number.

215335013 is a deficient number, since it is larger than the sum of its proper divisors (5007835).

215335013 is an equidigital number, since it uses as much as digits as its factorization.

215335013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007834.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 215335013 is about 14674.2977004012. The cubic root of 215335013 is about 599.3836383436.

Adding to 215335013 its reverse (310533512), we get a palindrome (525868525).

The spelling of 215335013 in words is "two hundred fifteen million, three hundred thirty-five thousand, thirteen".