2291914369 has 2 divisors, whose sum is σ = 2291914370. Its totient is φ = 2291914368.

The previous prime is 2291914367. The next prime is 2291914397. The reversal of 2291914369 is 9634191922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1579665025 + 712249344 = 39745^2 + 26688^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291914369 - 2¹ = 2291914367 is a prime.

It is a super-2 number, since 2×2291914369² = 10505742949657336322, which contains 22 as substring.

Together with 2291914367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2291914363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145957184 + 1145957185.

It is an arithmetic number, because the mean of its divisors is an integer number (1145957185).

Almost surely, 2^2291914369 is an apocalyptic number.

It is an amenable number.

2291914369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291914369 is an equidigital number, since it uses as much as digits as its factorization.

2291914369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 2291914369 is about 47873.9424844038. The cubic root of 2291914369 is about 1318.4574820934.

The spelling of 2291914369 in words is "two billion, two hundred ninety-one million, nine hundred fourteen thousand, three hundred sixty-nine".