1243453504 has 28 divisors (see below), whose sum is σ = 2469807100. Its totient is φ = 621139968.

The previous prime is 1243453483. The next prime is 1243453517. The reversal of 1243453504 is 4053543421.

It can be written as a sum of positive squares in 2 ways, for example, as 304153600 + 939299904 = 17440^2 + 30648^2 .

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, 63652 + ... + 80860.

Almost surely, 2^1243453504 is an apocalyptic number.

It is an amenable number.

1243453504 is a deficient number, since it is larger than the sum of its proper divisors (1226353596).

1243453504 is a wasteful number, since it uses less digits than its factorization.

1243453504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18350 (or 18340 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1243453504 is about 35262.6360897764. The cubic root of 1243453504 is about 1075.3335194460. Note that the first 3 decimals are identical.

Adding to 1243453504 its reverse (4053543421), we get a palindrome (5296996925).

The spelling of 1243453504 in words is "one billion, two hundred forty-three million, four hundred fifty-three thousand, five hundred four".