1020957907 has 2 divisors, whose sum is σ = 1020957908. Its totient is φ = 1020957906.

The previous prime is 1020957881. The next prime is 1020957911. The reversal of 1020957907 is 7097590201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020957907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020957907.

It is not a weakly prime, because it can be changed into another prime (1020927907) 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, 510478953 + 510478954.

It is an arithmetic number, because the mean of its divisors is an integer number (510478954).

Almost surely, 2^1020957907 is an apocalyptic number.

1020957907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020957907 is an equidigital number, since it uses as much as digits as its factorization.

1020957907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 1020957907 is about 31952.4319418726. The cubic root of 1020957907 is about 1006.9377256538.

The spelling of 1020957907 in words is "one billion, twenty million, nine hundred fifty-seven thousand, nine hundred seven".