229215719 has 2 divisors, whose sum is σ = 229215720. Its totient is φ = 229215718.

The previous prime is 229215691. The next prime is 229215737. The reversal of 229215719 is 917512922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229215719 - 2²⁴ = 212438503 is a prime.

It is a super-2 number, since 2×229215719² = 105079691673373922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229215319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114607859 + 114607860.

It is an arithmetic number, because the mean of its divisors is an integer number (114607860).

Almost surely, 2^229215719 is an apocalyptic number.

229215719 is a deficient number, since it is larger than the sum of its proper divisors (1).

229215719 is an equidigital number, since it uses as much as digits as its factorization.

229215719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 229215719 is about 15139.8718290480. The cubic root of 229215719 is about 611.9953641055.

The spelling of 229215719 in words is "two hundred twenty-nine million, two hundred fifteen thousand, seven hundred nineteen".