1601364197 has 2 divisors, whose sum is σ = 1601364198. Its totient is φ = 1601364196.

The previous prime is 1601364151. The next prime is 1601364199. The reversal of 1601364197 is 7914631061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1168682596 + 432681601 = 34186^2 + 20801^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601364197 - 2²⁴ = 1584586981 is a prime.

Together with 1601364199, it forms a pair of twin primes.

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 1601364197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601364199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800682098 + 800682099.

It is an arithmetic number, because the mean of its divisors is an integer number (800682099).

Almost surely, 2^1601364197 is an apocalyptic number.

It is an amenable number.

1601364197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601364197 is an equidigital number, since it uses as much as digits as its factorization.

1601364197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1601364197 is about 40017.0488292178. The cubic root of 1601364197 is about 1169.9394122082.

The spelling of 1601364197 in words is "one billion, six hundred one million, three hundred sixty-four thousand, one hundred ninety-seven".