215257151 has 2 divisors, whose sum is σ = 215257152. Its totient is φ = 215257150.

The previous prime is 215257129. The next prime is 215257177. The reversal of 215257151 is 151752512.

215257151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215257151 - 2¹⁰ = 215256127 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215257051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107628575 + 107628576.

It is an arithmetic number, because the mean of its divisors is an integer number (107628576).

Almost surely, 2^215257151 is an apocalyptic number.

215257151 is a deficient number, since it is larger than the sum of its proper divisors (1).

215257151 is an equidigital number, since it uses as much as digits as its factorization.

215257151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3500, while the sum is 29.

The square root of 215257151 is about 14671.6444545252. The cubic root of 215257151 is about 599.3113868407.

The spelling of 215257151 in words is "two hundred fifteen million, two hundred fifty-seven thousand, one hundred fifty-one".