215300651 has 2 divisors, whose sum is σ = 215300652. Its totient is φ = 215300650.

The previous prime is 215300639. The next prime is 215300653. The reversal of 215300651 is 156003512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215300651 - 2⁶ = 215300587 is a prime.

Together with 215300653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (215300653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107650325 + 107650326.

It is an arithmetic number, because the mean of its divisors is an integer number (107650326).

Almost surely, 2^215300651 is an apocalyptic number.

215300651 is a deficient number, since it is larger than the sum of its proper divisors (1).

215300651 is an equidigital number, since it uses as much as digits as its factorization.

215300651 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 23.

The square root of 215300651 is about 14673.1268310473. The cubic root of 215300651 is about 599.3517545115.

The spelling of 215300651 in words is "two hundred fifteen million, three hundred thousand, six hundred fifty-one".