1263041252 has 24 divisors (see below), whose sum is σ = 2412701760. Its totient is φ = 573766560.

The previous prime is 1263041249. The next prime is 1263041257. The reversal of 1263041252 is 2521403621.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1263041257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75038 + ... + 90314.

It is an arithmetic number, because the mean of its divisors is an integer number (100529240).

Almost surely, 2^1263041252 is an apocalyptic number.

It is an amenable number.

1263041252 is a deficient number, since it is larger than the sum of its proper divisors (1149660508).

1263041252 is a wasteful number, since it uses less digits than its factorization.

1263041252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17171 (or 17169 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1263041252 is about 35539.2916642974. The cubic root of 1263041252 is about 1080.9505953860.

Adding to 1263041252 its reverse (2521403621), we get a palindrome (3784444873).

The spelling of 1263041252 in words is "one billion, two hundred sixty-three million, forty-one thousand, two hundred fifty-two".