2309009291 has 2 divisors, whose sum is σ = 2309009292. Its totient is φ = 2309009290.

The previous prime is 2309009251. The next prime is 2309009299. The reversal of 2309009291 is 1929009032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2309009291 is a prime.

It is a super-4 number, since 4×2309009291⁴ (a number of 39 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (2309009299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154504645 + 1154504646.

It is an arithmetic number, because the mean of its divisors is an integer number (1154504646).

Almost surely, 2^2309009291 is an apocalyptic number.

2309009291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2309009291 is an equidigital number, since it uses as much as digits as its factorization.

2309009291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2309009291 is about 48052.1517832448. The cubic root of 2309009291 is about 1321.7274008165.

The spelling of 2309009291 in words is "two billion, three hundred nine million, nine thousand, two hundred ninety-one".