1002225949 has 2 divisors, whose sum is σ = 1002225950. Its totient is φ = 1002225948.

The previous prime is 1002225937. The next prime is 1002225971. The reversal of 1002225949 is 9495222001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 748843225 + 253382724 = 27365^2 + 15918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002225949 - 2²⁷ = 868008221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002225449) 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, 501112974 + 501112975.

It is an arithmetic number, because the mean of its divisors is an integer number (501112975).

Almost surely, 2^1002225949 is an apocalyptic number.

It is an amenable number.

1002225949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002225949 is an equidigital number, since it uses as much as digits as its factorization.

1002225949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1002225949 is about 31657.9523816687. The cubic root of 1002225949 is about 1000.7414331410.

The spelling of 1002225949 in words is "one billion, two million, two hundred twenty-five thousand, nine hundred forty-nine".