1263853283 has 16 divisors (see below), whose sum is σ = 1577124864. Its totient is φ = 983938560.

The previous prime is 1263853273. The next prime is 1263853301. The reversal of 1263853283 is 3823583621.

It is not a de Polignac number, because 1263853283 - 2¹² = 1263849187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1263853283.

It is not an unprimeable number, because it can be changed into a prime (1263853223) 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, 86966 + ... + 100452.

It is an arithmetic number, because the mean of its divisors is an integer number (98570304).

Almost surely, 2^1263853283 is an apocalyptic number.

1263853283 is a deficient number, since it is larger than the sum of its proper divisors (313271581).

1263853283 is a wasteful number, since it uses less digits than its factorization.

1263853283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14722.

The product of its digits is 207360, while the sum is 41.

The square root of 1263853283 is about 35550.7142403637. The cubic root of 1263853283 is about 1081.1821996846.

The spelling of 1263853283 in words is "one billion, two hundred sixty-three million, eight hundred fifty-three thousand, two hundred eighty-three".