1283873281 has 8 divisors (see below), whose sum is σ = 1291511520. Its totient is φ = 1276258368.

The previous prime is 1283873257. The next prime is 1283873293. The reversal of 1283873281 is 1823783821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283873281 is a prime.

It is a super-2 number, since 2×1283873281² = 3296661203331409922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283873081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111450 + ... + 122428.

It is an arithmetic number, because the mean of its divisors is an integer number (161438940).

Almost surely, 2^1283873281 is an apocalyptic number.

It is an amenable number.

1283873281 is a deficient number, since it is larger than the sum of its proper divisors (7638239).

1283873281 is a wasteful number, since it uses less digits than its factorization.

1283873281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11663.

The product of its digits is 129024, while the sum is 43.

The square root of 1283873281 is about 35831.1774994906. The cubic root of 1283873281 is about 1086.8611211326.

The spelling of 1283873281 in words is "one billion, two hundred eighty-three million, eight hundred seventy-three thousand, two hundred eighty-one".