1263131404 has 24 divisors (see below), whose sum is σ = 2254156128. Its totient is φ = 619107840.

The previous prime is 1263131377. The next prime is 1263131423. The reversal of 1263131404 is 4041313621.

It is a super-2 number, since 2×1263131404² = 3191001887542022432, which contains 22 as substring.

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, 358009 + ... + 361519.

It is an arithmetic number, because the mean of its divisors is an integer number (93923172).

Almost surely, 2^1263131404 is an apocalyptic number.

It is an amenable number.

1263131404 is a deficient number, since it is larger than the sum of its proper divisors (991024724).

1263131404 is a wasteful number, since it uses less digits than its factorization.

1263131404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265 (or 5263 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1263131404 is about 35540.5599843334. The cubic root of 1263131404 is about 1080.9763130838.

The spelling of 1263131404 in words is "one billion, two hundred sixty-three million, one hundred thirty-one thousand, four hundred four".