215064719 has 2 divisors, whose sum is σ = 215064720. Its totient is φ = 215064718.

The previous prime is 215064679. The next prime is 215064727. The reversal of 215064719 is 917460512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215064719 - 2²⁴ = 198287503 is a prime.

It is a super-2 number, since 2×215064719² = 92505666717097922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215064749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107532359 + 107532360.

It is an arithmetic number, because the mean of its divisors is an integer number (107532360).

Almost surely, 2^215064719 is an apocalyptic number.

215064719 is a deficient number, since it is larger than the sum of its proper divisors (1).

215064719 is an equidigital number, since it uses as much as digits as its factorization.

215064719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 215064719 is about 14665.0850321435. The cubic root of 215064719 is about 599.1327461292.

The spelling of 215064719 in words is "two hundred fifteen million, sixty-four thousand, seven hundred nineteen".