1970131697 has 2 divisors, whose sum is σ = 1970131698. Its totient is φ = 1970131696.

The previous prime is 1970131673. The next prime is 1970131703. The reversal of 1970131697 is 7961310791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1244960656 + 725171041 = 35284^2 + 26929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970131697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1970131297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985065848 + 985065849.

It is an arithmetic number, because the mean of its divisors is an integer number (985065849).

Almost surely, 2^1970131697 is an apocalyptic number.

It is an amenable number.

1970131697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970131697 is an equidigital number, since it uses as much as digits as its factorization.

1970131697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 1970131697 is about 44386.1656037104. The cubic root of 1970131697 is about 1253.6176155461.

The spelling of 1970131697 in words is "one billion, nine hundred seventy million, one hundred thirty-one thousand, six hundred ninety-seven".