196597111 has 2 divisors, whose sum is σ = 196597112. Its totient is φ = 196597110.

The previous prime is 196597081. The next prime is 196597117. The reversal of 196597111 is 111795691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 196597111 - 2¹³ = 196588919 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196597117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98298555 + 98298556.

It is an arithmetic number, because the mean of its divisors is an integer number (98298556).

Almost surely, 2^196597111 is an apocalyptic number.

196597111 is a deficient number, since it is larger than the sum of its proper divisors (1).

196597111 is an equidigital number, since it uses as much as digits as its factorization.

196597111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 40.

The square root of 196597111 is about 14021.3091756797. The cubic root of 196597111 is about 581.4678545764.

The spelling of 196597111 in words is "one hundred ninety-six million, five hundred ninety-seven thousand, one hundred eleven".