220515133 has 2 divisors, whose sum is σ = 220515134. Its totient is φ = 220515132.

The previous prime is 220515131. The next prime is 220515167. The reversal of 220515133 is 331515022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210917529 + 9597604 = 14523^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 220515133 - 2¹ = 220515131 is a prime.

Together with 220515131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220515131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110257566 + 110257567.

It is an arithmetic number, because the mean of its divisors is an integer number (110257567).

Almost surely, 2^220515133 is an apocalyptic number.

It is an amenable number.

220515133 is a deficient number, since it is larger than the sum of its proper divisors (1).

220515133 is an equidigital number, since it uses as much as digits as its factorization.

220515133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 220515133 is about 14849.7519507903. The cubic root of 220515133 is about 604.1518822246.

The spelling of 220515133 in words is "two hundred twenty million, five hundred fifteen thousand, one hundred thirty-three".