201299797 has 2 divisors, whose sum is σ = 201299798. Its totient is φ = 201299796.

The previous prime is 201299789. The next prime is 201299807. The reversal of 201299797 is 797992102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103408561 + 97891236 = 10169^2 + 9894^2 .

It is a cyclic number.

It is not a de Polignac number, because 201299797 - 2³ = 201299789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201299897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100649898 + 100649899.

It is an arithmetic number, because the mean of its divisors is an integer number (100649899).

Almost surely, 2^201299797 is an apocalyptic number.

It is an amenable number.

201299797 is a deficient number, since it is larger than the sum of its proper divisors (1).

201299797 is an equidigital number, since it uses as much as digits as its factorization.

201299797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 201299797 is about 14188.0159641861. The cubic root of 201299797 is about 586.0676895331.

The spelling of 201299797 in words is "two hundred one million, two hundred ninety-nine thousand, seven hundred ninety-seven".