1253123204 has 12 divisors (see below), whose sum is σ = 2217606300. Its totient is φ = 619521408.

The previous prime is 1253123189. The next prime is 1253123213. The reversal of 1253123204 is 4023213521.

It can be written as a sum of positive squares in 2 ways, for example, as 823804804 + 429318400 = 28702^2 + 20720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1253123204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759649 + ... + 1760360.

It is an arithmetic number, because the mean of its divisors is an integer number (184800525).

Almost surely, 2^1253123204 is an apocalyptic number.

It is an amenable number.

1253123204 is a deficient number, since it is larger than the sum of its proper divisors (964483096).

1253123204 is a wasteful number, since it uses less digits than its factorization.

1253123204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520102 (or 3520100 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1253123204 is about 35399.4802786708. The cubic root of 1253123204 is about 1078.1137640490.

Adding to 1253123204 its reverse (4023213521), we get a palindrome (5276336725).

The spelling of 1253123204 in words is "one billion, two hundred fifty-three million, one hundred twenty-three thousand, two hundred four".