197925331 has 2 divisors, whose sum is σ = 197925332. Its totient is φ = 197925330.

The previous prime is 197925313. The next prime is 197925349. The reversal of 197925331 is 133529791.

Together with previous prime (197925313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (197925313) and next prime (197925349).

It is an emirp because it is prime and its reverse (133529791) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197925331 is a prime.

It is a super-2 number, since 2×197925331² = 78348873302919122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197925311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98962665 + 98962666.

It is an arithmetic number, because the mean of its divisors is an integer number (98962666).

Almost surely, 2^197925331 is an apocalyptic number.

197925331 is a deficient number, since it is larger than the sum of its proper divisors (1).

197925331 is an equidigital number, since it uses as much as digits as its factorization.

197925331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 40.

The square root of 197925331 is about 14068.5937818959. The cubic root of 197925331 is about 582.7743920213.

The spelling of 197925331 in words is "one hundred ninety-seven million, nine hundred twenty-five thousand, three hundred thirty-one".