1283442861 has 8 divisors (see below), whose sum is σ = 1731875040. Its totient is φ = 845319632.

The previous prime is 1283442841. The next prime is 1283442869. The reversal of 1283442861 is 1682443821.

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 1283442861 - 2⁷ = 1283442733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283442869) 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, 2576946 + ... + 2577443.

It is an arithmetic number, because the mean of its divisors is an integer number (216484380).

Almost surely, 2^1283442861 is an apocalyptic number.

It is an amenable number.

1283442861 is a deficient number, since it is larger than the sum of its proper divisors (448432179).

1283442861 is an equidigital number, since it uses as much as digits as its factorization.

1283442861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154475.

The product of its digits is 73728, while the sum is 39.

The square root of 1283442861 is about 35825.1707741917. The cubic root of 1283442861 is about 1086.7396504086.

The spelling of 1283442861 in words is "one billion, two hundred eighty-three million, four hundred forty-two thousand, eight hundred sixty-one".