215133103 has 2 divisors, whose sum is σ = 215133104. Its totient is φ = 215133102.

The previous prime is 215133097. The next prime is 215133137. The reversal of 215133103 is 301331512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215133103 - 2¹⁷ = 215002031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215133403) 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, 107566551 + 107566552.

It is an arithmetic number, because the mean of its divisors is an integer number (107566552).

Almost surely, 2^215133103 is an apocalyptic number.

215133103 is a deficient number, since it is larger than the sum of its proper divisors (1).

215133103 is an equidigital number, since it uses as much as digits as its factorization.

215133103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 215133103 is about 14667.4163709905. The cubic root of 215133103 is about 599.1962413601.

Adding to 215133103 its reverse (301331512), we get a palindrome (516464615).

The spelling of 215133103 in words is "two hundred fifteen million, one hundred thirty-three thousand, one hundred three".