3345221497 has 2 divisors, whose sum is σ = 3345221498. Its totient is φ = 3345221496.

The previous prime is 3345221441. The next prime is 3345221629. The reversal of 3345221497 is 7941225433.

3345221497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2871245056 + 473976441 = 53584^2 + 21771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3345221497 is a prime.

It is a super-2 number, since 2×3345221497² = 22381013727981842018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3345221437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672610748 + 1672610749.

It is an arithmetic number, because the mean of its divisors is an integer number (1672610749).

Almost surely, 2^3345221497 is an apocalyptic number.

It is an amenable number.

3345221497 is a deficient number, since it is larger than the sum of its proper divisors (1).

3345221497 is an equidigital number, since it uses as much as digits as its factorization.

3345221497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 3345221497 is about 57837.8898041759. The cubic root of 3345221497 is about 1495.5753309618.

The spelling of 3345221497 in words is "three billion, three hundred forty-five million, two hundred twenty-one thousand, four hundred ninety-seven".