3249156217 has 2 divisors, whose sum is σ = 3249156218. Its totient is φ = 3249156216.

The previous prime is 3249156193. The next prime is 3249156247. The reversal of 3249156217 is 7126519423.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2957293161 + 291863056 = 54381^2 + 17084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3249156217 is a prime.

It is a super-2 number, since 2×3249156217² = 21114032244939502178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3249156217.

It is not a weakly prime, because it can be changed into another prime (3249156247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1624578108 + 1624578109.

It is an arithmetic number, because the mean of its divisors is an integer number (1624578109).

Almost surely, 2^3249156217 is an apocalyptic number.

It is an amenable number.

3249156217 is a deficient number, since it is larger than the sum of its proper divisors (1).

3249156217 is an equidigital number, since it uses as much as digits as its factorization.

3249156217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 3249156217 is about 57001.3703080900. The cubic root of 3249156217 is about 1481.1198331688.

The spelling of 3249156217 in words is "three billion, two hundred forty-nine million, one hundred fifty-six thousand, two hundred seventeen".