1145123204 has 12 divisors (see below), whose sum is σ = 2005242624. Its totient is φ = 572196744.

The previous prime is 1145123173. The next prime is 1145123219. The reversal of 1145123204 is 4023215411.

It is a super-2 number, since 2×1145123204² = 2622614304678451232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145123204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84092 + ... + 96755.

It is an arithmetic number, because the mean of its divisors is an integer number (167103552).

Almost surely, 2^1145123204 is an apocalyptic number.

It is an amenable number.

1145123204 is a deficient number, since it is larger than the sum of its proper divisors (860119420).

1145123204 is a wasteful number, since it uses less digits than its factorization.

1145123204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182434 (or 182432 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1145123204 is about 33839.6690882166. The cubic root of 1145123204 is about 1046.2064784745.

Adding to 1145123204 its reverse (4023215411), we get a palindrome (5168338615).

The spelling of 1145123204 in words is "one billion, one hundred forty-five million, one hundred twenty-three thousand, two hundred four".