215229151 has 2 divisors, whose sum is σ = 215229152. Its totient is φ = 215229150.

The previous prime is 215229149. The next prime is 215229191. The reversal of 215229151 is 151922512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215229151 - 2¹ = 215229149 is a prime.

Together with 215229149, 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 (215229191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107614575 + 107614576.

It is an arithmetic number, because the mean of its divisors is an integer number (107614576).

Almost surely, 2^215229151 is an apocalyptic number.

215229151 is a deficient number, since it is larger than the sum of its proper divisors (1).

215229151 is an equidigital number, since it uses as much as digits as its factorization.

215229151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 28.

The square root of 215229151 is about 14670.6902018958. The cubic root of 215229151 is about 599.2854001756.

The spelling of 215229151 in words is "two hundred fifteen million, two hundred twenty-nine thousand, one hundred fifty-one".