1243504052 has 24 divisors (see below), whose sum is σ = 2488489920. Its totient is φ = 532612800.

The previous prime is 1243504037. The next prime is 1243504061. The reversal of 1243504052 is 2504053421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38099 + ... + 62757.

It is an arithmetic number, because the mean of its divisors is an integer number (103687080).

Almost surely, 2^1243504052 is an apocalyptic number.

It is an amenable number.

1243504052 is an abundant number, since it is smaller than the sum of its proper divisors (1244985868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243504052 is a wasteful number, since it uses less digits than its factorization.

1243504052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471 (or 26469 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1243504052 is about 35263.3528184715. The cubic root of 1243504052 is about 1075.3480904833.

Adding to 1243504052 its reverse (2504053421), we get a palindrome (3747557473).

The spelling of 1243504052 in words is "one billion, two hundred forty-three million, five hundred four thousand, fifty-two".