1288923283 has 4 divisors (see below), whose sum is σ = 1289302168. Its totient is φ = 1288544400.

The previous prime is 1288923277. The next prime is 1288923319. The reversal of 1288923283 is 3823298821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1288923283 - 2⁹ = 1288922771 is a prime.

It is a super-2 number, since 2×1288923283² = 3322646458918996178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1288924283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184293 + ... + 191158.

It is an arithmetic number, because the mean of its divisors is an integer number (322325542).

Almost surely, 2^1288923283 is an apocalyptic number.

1288923283 is a deficient number, since it is larger than the sum of its proper divisors (378885).

1288923283 is an equidigital number, since it uses as much as digits as its factorization.

1288923283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378884.

The product of its digits is 331776, while the sum is 46.

The square root of 1288923283 is about 35901.5777229915. The cubic root of 1288923283 is about 1088.2842808341.

The spelling of 1288923283 in words is "one billion, two hundred eighty-eight million, nine hundred twenty-three thousand, two hundred eighty-three".