397869737131 has 2 divisors, whose sum is σ = 397869737132. Its totient is φ = 397869737130.

The previous prime is 397869737117. The next prime is 397869737141. The reversal of 397869737131 is 131737968793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 397869737131 - 2¹³ = 397869728939 is a prime.

It is a super-2 number, since 2×397869737131² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397869737141) 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, 198934868565 + 198934868566.

It is an arithmetic number, because the mean of its divisors is an integer number (198934868566).

Almost surely, 2^397869737131 is an apocalyptic number.

397869737131 is a deficient number, since it is larger than the sum of its proper divisors (1).

397869737131 is an equidigital number, since it uses as much as digits as its factorization.

397869737131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36006768, while the sum is 64.

The spelling of 397869737131 in words is "three hundred ninety-seven billion, eight hundred sixty-nine million, seven hundred thirty-seven thousand, one hundred thirty-one".