2272345739 has 2 divisors, whose sum is σ = 2272345740. Its totient is φ = 2272345738.

The previous prime is 2272345687. The next prime is 2272345741. The reversal of 2272345739 is 9375432722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2272345739 - 2⁸ = 2272345483 is a prime.

It is a super-2 number, since 2×2272345739² = 10327110315102912242, which contains 22 as substring.

Together with 2272345741, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2272345739.

It is not a weakly prime, because it can be changed into another prime (2272345799) 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, 1136172869 + 1136172870.

It is an arithmetic number, because the mean of its divisors is an integer number (1136172870).

Almost surely, 2^2272345739 is an apocalyptic number.

2272345739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272345739 is an equidigital number, since it uses as much as digits as its factorization.

2272345739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 44.

The square root of 2272345739 is about 47669.1277348348. The cubic root of 2272345739 is about 1314.6943708944.

The spelling of 2272345739 in words is "two billion, two hundred seventy-two million, three hundred forty-five thousand, seven hundred thirty-nine".