197396951 has 2 divisors, whose sum is σ = 197396952. Its totient is φ = 197396950.

The previous prime is 197396923. The next prime is 197396977. The reversal of 197396951 is 159693791.

197396951 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 197396951 - 2¹⁸ = 197134807 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197396951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197396921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98698475 + 98698476.

It is an arithmetic number, because the mean of its divisors is an integer number (98698476).

Almost surely, 2^197396951 is an apocalyptic number.

197396951 is a deficient number, since it is larger than the sum of its proper divisors (1).

197396951 is an equidigital number, since it uses as much as digits as its factorization.

197396951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 459270, while the sum is 50.

The square root of 197396951 is about 14049.8025253026. The cubic root of 197396951 is about 582.2553397918.

The spelling of 197396951 in words is "one hundred ninety-seven million, three hundred ninety-six thousand, nine hundred fifty-one".