601264591 has 2 divisors, whose sum is σ = 601264592. Its totient is φ = 601264590.

The previous prime is 601264589. The next prime is 601264637. The reversal of 601264591 is 195462106.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 601264591 - 2¹ = 601264589 is a prime.

Together with 601264589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601264501) 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, 300632295 + 300632296.

It is an arithmetic number, because the mean of its divisors is an integer number (300632296).

Almost surely, 2^601264591 is an apocalyptic number.

601264591 is a deficient number, since it is larger than the sum of its proper divisors (1).

601264591 is an equidigital number, since it uses as much as digits as its factorization.

601264591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 601264591 is about 24520.6971964502. The cubic root of 601264591 is about 844.0248035769.

The spelling of 601264591 in words is "six hundred one million, two hundred sixty-four thousand, five hundred ninety-one".