215150330947 has 2 divisors, whose sum is σ = 215150330948. Its totient is φ = 215150330946.

The previous prime is 215150330939. The next prime is 215150330963. The reversal of 215150330947 is 749033051512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215150330947 - 2³ = 215150330939 is a prime.

It is not a weakly prime, because it can be changed into another prime (215150330917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107575165473 + 107575165474.

It is an arithmetic number, because the mean of its divisors is an integer number (107575165474).

Almost surely, 2^215150330947 is an apocalyptic number.

215150330947 is a deficient number, since it is larger than the sum of its proper divisors (1).

215150330947 is an equidigital number, since it uses as much as digits as its factorization.

215150330947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 40.

The spelling of 215150330947 in words is "two hundred fifteen billion, one hundred fifty million, three hundred thirty thousand, nine hundred forty-seven".