1263241603 has 8 divisors (see below), whose sum is σ = 1365329168. Its totient is φ = 1161856224.

The previous prime is 1263241541. The next prime is 1263241613. The reversal of 1263241603 is 3061423621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1263241603 - 2²⁵ = 1229687171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1263241613) 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, 171801 + ... + 179002.

It is an arithmetic number, because the mean of its divisors is an integer number (170666146).

Almost surely, 2^1263241603 is an apocalyptic number.

1263241603 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1263241603 is a deficient number, since it is larger than the sum of its proper divisors (102087565).

1263241603 is a wasteful number, since it uses less digits than its factorization.

1263241603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351093.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1263241603 is about 35542.1102778099. The cubic root of 1263241603 is about 1081.0077479354.

The spelling of 1263241603 in words is "one billion, two hundred sixty-three million, two hundred forty-one thousand, six hundred three".