601365997 has 2 divisors, whose sum is σ = 601365998. Its totient is φ = 601365996.

The previous prime is 601365991. The next prime is 601366013. The reversal of 601365997 is 799563106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330730596 + 270635401 = 18186^2 + 16451^2 .

It is a cyclic number.

It is not a de Polignac number, because 601365997 - 2²³ = 592977389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601365991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300682998 + 300682999.

It is an arithmetic number, because the mean of its divisors is an integer number (300682999).

Almost surely, 2^601365997 is an apocalyptic number.

It is an amenable number.

601365997 is a deficient number, since it is larger than the sum of its proper divisors (1).

601365997 is an equidigital number, since it uses as much as digits as its factorization.

601365997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 601365997 is about 24522.7648726647. The cubic root of 601365997 is about 844.0722504465.

It can be divided in two parts, 6013 and 65997, that added together give a triangular number (72010 = T₃₇₉).

The spelling of 601365997 in words is "six hundred one million, three hundred sixty-five thousand, nine hundred ninety-seven".