1264573601 has 2 divisors, whose sum is σ = 1264573602. Its totient is φ = 1264573600.

The previous prime is 1264573589. The next prime is 1264573663. The reversal of 1264573601 is 1063754621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1258546576 + 6027025 = 35476^2 + 2455^2 .

It is an emirp because it is prime and its reverse (1063754621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1264573601 - 2¹⁰ = 1264572577 is a prime.

It is a super-2 number, since 2×1264573601² = 3198292784692214402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1264573691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632286800 + 632286801.

It is an arithmetic number, because the mean of its divisors is an integer number (632286801).

Almost surely, 2^1264573601 is an apocalyptic number.

It is an amenable number.

1264573601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264573601 is an equidigital number, since it uses as much as digits as its factorization.

1264573601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1264573601 is about 35560.8436485975. The cubic root of 1264573601 is about 1081.3875629448.

The spelling of 1264573601 in words is "one billion, two hundred sixty-four million, five hundred seventy-three thousand, six hundred one".