1970572291 has 2 divisors, whose sum is σ = 1970572292. Its totient is φ = 1970572290.

The previous prime is 1970572283. The next prime is 1970572313. The reversal of 1970572291 is 1922750791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1970572291 - 2³ = 1970572283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1970572231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985286145 + 985286146.

It is an arithmetic number, because the mean of its divisors is an integer number (985286146).

Almost surely, 2^1970572291 is an apocalyptic number.

1970572291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970572291 is an equidigital number, since it uses as much as digits as its factorization.

1970572291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 1970572291 is about 44391.1285168557. The cubic root of 1970572291 is about 1253.7110602688.

The spelling of 1970572291 in words is "one billion, nine hundred seventy million, five hundred seventy-two thousand, two hundred ninety-one".