1245044823 has 16 divisors (see below), whose sum is σ = 1824009600. Its totient is φ = 749141280.

The previous prime is 1245044813. The next prime is 1245044837. The reversal of 1245044823 is 3284405421.

It is not a de Polignac number, because 1245044823 - 2²⁹ = 708173911 is a prime.

It is a super-2 number, since 2×1245044823² = 3100273222558202658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245044813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131128 + ... + 140301.

It is an arithmetic number, because the mean of its divisors is an integer number (114000600).

Almost surely, 2^1245044823 is an apocalyptic number.

1245044823 is a deficient number, since it is larger than the sum of its proper divisors (578964777).

1245044823 is a wasteful number, since it uses less digits than its factorization.

1245044823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271582.

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 1245044823 is about 35285.1926875850. The cubic root of 1245044823 is about 1075.7920459613.

The spelling of 1245044823 in words is "one billion, two hundred forty-five million, forty-four thousand, eight hundred twenty-three".