197268131 has 2 divisors, whose sum is σ = 197268132. Its totient is φ = 197268130.

The previous prime is 197268077. The next prime is 197268151. The reversal of 197268131 is 131862791.

It is a strong prime.

It is an emirp because it is prime and its reverse (131862791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197268131 is a prime.

It is a super-2 number, since 2×197268131² = 77829431016466322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197268151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98634065 + 98634066.

It is an arithmetic number, because the mean of its divisors is an integer number (98634066).

Almost surely, 2^197268131 is an apocalyptic number.

197268131 is a deficient number, since it is larger than the sum of its proper divisors (1).

197268131 is an equidigital number, since it uses as much as digits as its factorization.

197268131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 197268131 is about 14045.2173710484. The cubic root of 197268131 is about 582.1286535139.

The spelling of 197268131 in words is "one hundred ninety-seven million, two hundred sixty-eight thousand, one hundred thirty-one".