197291023 has 2 divisors, whose sum is σ = 197291024. Its totient is φ = 197291022.

The previous prime is 197290997. The next prime is 197291027. The reversal of 197291023 is 320192791.

It is a happy number.

197291023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197291023 - 2⁵ = 197290991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197291023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197291027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98645511 + 98645512.

It is an arithmetic number, because the mean of its divisors is an integer number (98645512).

Almost surely, 2^197291023 is an apocalyptic number.

197291023 is a deficient number, since it is larger than the sum of its proper divisors (1).

197291023 is an equidigital number, since it uses as much as digits as its factorization.

197291023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 197291023 is about 14046.0322867349. The cubic root of 197291023 is about 582.1511703689.

The spelling of 197291023 in words is "one hundred ninety-seven million, two hundred ninety-one thousand, twenty-three".