1263130540 has 24 divisors (see below), whose sum is σ = 3031513632. Its totient is φ = 433073280.

The previous prime is 1263130523. The next prime is 1263130567. The reversal of 1263130540 is 450313621.

It is a super-2 number, since 2×1263130540² = 3190997522161383200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4511041 + ... + 4511320.

It is an arithmetic number, because the mean of its divisors is an integer number (126313068).

Almost surely, 2^1263130540 is an apocalyptic number.

1263130540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1263130540 is an abundant number, since it is smaller than the sum of its proper divisors (1768383092).

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

1263130540 is a wasteful number, since it uses less digits than its factorization.

1263130540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9022377 (or 9022375 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1263130540 is about 35540.5478292049. The cubic root of 1263130540 is about 1080.9760666159.

The spelling of 1263130540 in words is "one billion, two hundred sixty-three million, one hundred thirty thousand, five hundred forty".