1283342681 has 16 divisors (see below), whose sum is σ = 1361192448. Its totient is φ = 1207958400.

The previous prime is 1283342677. The next prime is 1283342719. The reversal of 1283342681 is 1862433821.

It is a happy number.

It is not a de Polignac number, because 1283342681 - 2² = 1283342677 is a prime.

It is a super-2 number, since 2×1283342681² = 3293936873752535522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283342981) 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, 472730 + ... + 475436.

It is an arithmetic number, because the mean of its divisors is an integer number (85074528).

Almost surely, 2^1283342681 is an apocalyptic number.

It is an amenable number.

1283342681 is a deficient number, since it is larger than the sum of its proper divisors (77849767).

1283342681 is a wasteful number, since it uses less digits than its factorization.

1283342681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152.

The product of its digits is 55296, while the sum is 38.

The square root of 1283342681 is about 35823.7725679471. The cubic root of 1283342681 is about 1086.7113742735.

The spelling of 1283342681 in words is "one billion, two hundred eighty-three million, three hundred forty-two thousand, six hundred eighty-one".