196013591 has 2 divisors, whose sum is σ = 196013592. Its totient is φ = 196013590.

The previous prime is 196013569. The next prime is 196013603. The reversal of 196013591 is 195310691.

It is a strong prime.

It is an emirp because it is prime and its reverse (195310691) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196013591 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 (196013551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98006795 + 98006796.

It is an arithmetic number, because the mean of its divisors is an integer number (98006796).

Almost surely, 2^196013591 is an apocalyptic number.

196013591 is a deficient number, since it is larger than the sum of its proper divisors (1).

196013591 is an equidigital number, since it uses as much as digits as its factorization.

196013591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 196013591 is about 14000.4853844429. The cubic root of 196013591 is about 580.8919994418.

It can be divided in two parts, 1960 and 13591, that added together give a palindrome (15551).

The spelling of 196013591 in words is "one hundred ninety-six million, thirteen thousand, five hundred ninety-one".