1002980557 has 2 divisors, whose sum is σ = 1002980558. Its totient is φ = 1002980556.

The previous prime is 1002980551. The next prime is 1002980567. The reversal of 1002980557 is 7550892001.

1002980557 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., 934769476 + 68211081 = 30574^2 + 8259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002980557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002980551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501490278 + 501490279.

It is an arithmetic number, because the mean of its divisors is an integer number (501490279).

Almost surely, 2^1002980557 is an apocalyptic number.

It is an amenable number.

1002980557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002980557 is an equidigital number, since it uses as much as digits as its factorization.

1002980557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 1002980557 is about 31669.8682820122. The cubic root of 1002980557 is about 1000.9925335512.

The spelling of 1002980557 in words is "one billion, two million, nine hundred eighty thousand, five hundred fifty-seven".