1263315748 has 48 divisors (see below), whose sum is σ = 2352430080. Its totient is φ = 592591104.

The previous prime is 1263315743. The next prime is 1263315749. The reversal of 1263315748 is 8475133621.

It is a self number, because there is not a number n which added to its sum of digits gives 1263315748.

It is not an unprimeable number, because it can be changed into a prime (1263315743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161661 + ... + 1162747.

It is an arithmetic number, because the mean of its divisors is an integer number (49008960).

Almost surely, 2^1263315748 is an apocalyptic number.

It is an amenable number.

1263315748 is a deficient number, since it is larger than the sum of its proper divisors (1089114332).

1263315748 is a wasteful number, since it uses less digits than its factorization.

1263315748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396 (or 1394 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 1263315748 is about 35543.1533209984. The cubic root of 1263315748 is about 1081.0288971627.

The spelling of 1263315748 in words is "one billion, two hundred sixty-three million, three hundred fifteen thousand, seven hundred forty-eight".