1002321949 has 2 divisors, whose sum is σ = 1002321950. Its totient is φ = 1002321948.

The previous prime is 1002321919. The next prime is 1002321979. The reversal of 1002321949 is 9491232001.

It is a balanced prime because it is at equal distance from previous prime (1002321919) and next prime (1002321979).

It can be written as a sum of positive squares in only one way, i.e., 956664900 + 45657049 = 30930^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002321949 - 2⁵ = 1002321917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002321949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002321919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501160974 + 501160975.

It is an arithmetic number, because the mean of its divisors is an integer number (501160975).

Almost surely, 2^1002321949 is an apocalyptic number.

It is an amenable number.

1002321949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002321949 is an equidigital number, since it uses as much as digits as its factorization.

1002321949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1002321949 is about 31659.4685520777. The cubic root of 1002321949 is about 1000.7733847219.

The spelling of 1002321949 in words is "one billion, two million, three hundred twenty-one thousand, nine hundred forty-nine".