196370591 has 2 divisors, whose sum is σ = 196370592. Its totient is φ = 196370590.

The previous prime is 196370569. The next prime is 196370597. The reversal of 196370591 is 195073691.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196370591 is a prime.

It is a super-2 number, since 2×196370591² = 77122818019378562, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196370597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98185295 + 98185296.

It is an arithmetic number, because the mean of its divisors is an integer number (98185296).

Almost surely, 2^196370591 is an apocalyptic number.

196370591 is a deficient number, since it is larger than the sum of its proper divisors (1).

196370591 is an equidigital number, since it uses as much as digits as its factorization.

196370591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 41.

The square root of 196370591 is about 14013.2291424925. The cubic root of 196370591 is about 581.2444455322.

The spelling of 196370591 in words is "one hundred ninety-six million, three hundred seventy thousand, five hundred ninety-one".