1020971167 has 2 divisors, whose sum is σ = 1020971168. Its totient is φ = 1020971166.

The previous prime is 1020971141. The next prime is 1020971191. The reversal of 1020971167 is 7611790201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020971167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020971467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510485583 + 510485584.

It is an arithmetic number, because the mean of its divisors is an integer number (510485584).

Almost surely, 2^1020971167 is an apocalyptic number.

1020971167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020971167 is an equidigital number, since it uses as much as digits as its factorization.

1020971167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 1020971167 is about 31952.6394371420. The cubic root of 1020971167 is about 1006.9420849378.

The spelling of 1020971167 in words is "one billion, twenty million, nine hundred seventy-one thousand, one hundred sixty-seven".