7345272257 has 2 divisors, whose sum is σ = 7345272258. Its totient is φ = 7345272256.

The previous prime is 7345272247. The next prime is 7345272307. The reversal of 7345272257 is 7522725437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6849052081 + 496220176 = 82759^2 + 22276^2 .

It is a cyclic number.

It is not a de Polignac number, because 7345272257 - 2¹⁰ = 7345271233 is a prime.

It is not a weakly prime, because it can be changed into another prime (7345272247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3672636128 + 3672636129.

It is an arithmetic number, because the mean of its divisors is an integer number (3672636129).

Almost surely, 2^7345272257 is an apocalyptic number.

It is an amenable number.

7345272257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7345272257 is an equidigital number, since it uses as much as digits as its factorization.

7345272257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 44.

The square root of 7345272257 is about 85704.5638049690. The cubic root of 7345272257 is about 1943.8793188059.

The spelling of 7345272257 in words is "seven billion, three hundred forty-five million, two hundred seventy-two thousand, two hundred fifty-seven".