1264573623 has 8 divisors (see below), whose sum is σ = 1744239600. Its totient is φ = 813978368.

The previous prime is 1264573601. The next prime is 1264573663. The reversal of 1264573623 is 3263754621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1264573623 - 2¹⁸ = 1264311479 is a prime.

It is a super-2 number, since 2×1264573623² = 3198292895974692258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264573663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7267578 + ... + 7267751.

It is an arithmetic number, because the mean of its divisors is an integer number (218029950).

Almost surely, 2^1264573623 is an apocalyptic number.

1264573623 is a deficient number, since it is larger than the sum of its proper divisors (479665977).

1264573623 is a wasteful number, since it uses less digits than its factorization.

1264573623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535361.

The product of its digits is 181440, while the sum is 39.

The square root of 1264573623 is about 35560.8439579265. The cubic root of 1264573623 is about 1081.3875692158.

It can be divided in two parts, 12645 and 73623, that added together give a palindrome (86268).

The spelling of 1264573623 in words is "one billion, two hundred sixty-four million, five hundred seventy-three thousand, six hundred twenty-three".