1283812106 has 4 divisors (see below), whose sum is σ = 1925718162. Its totient is φ = 641906052.

The previous prime is 1283812099. The next prime is 1283812109. The reversal of 1283812106 is 6012183821.

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

It can be written as a sum of positive squares in only one way, i.e., 1165198225 + 118613881 = 34135^2 + 10891^2 .

It is not an unprimeable number, because it can be changed into a prime (1283812109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320953025 + ... + 320953028.

Almost surely, 2^1283812106 is an apocalyptic number.

1283812106 is a deficient number, since it is larger than the sum of its proper divisors (641906056).

1283812106 is an equidigital number, since it uses as much as digits as its factorization.

1283812106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641906055.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1283812106 is about 35830.3238333119. The cubic root of 1283812106 is about 1086.8438583217.

Adding to 1283812106 its reverse (6012183821), we get a palindrome (7295995927).

The spelling of 1283812106 in words is "one billion, two hundred eighty-three million, eight hundred twelve thousand, one hundred six".