1283158 has 4 divisors (see below), whose sum is σ = 1924740. Its totient is φ = 641578.

The previous prime is 1283137. The next prime is 1283159. The reversal of 1283158 is 8513821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320788 + ... + 320791.

It is an arithmetic number, because the mean of its divisors is an integer number (481185).

2^1283158 is an apocalyptic number.

1283158 is a deficient number, since it is larger than the sum of its proper divisors (641582).

1283158 is an equidigital number, since it uses as much as digits as its factorization.

1283158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641581.

The product of its digits is 1920, while the sum is 28.

The square root of 1283158 is about 1132.7656421343. The cubic root of 1283158 is about 108.6659243596.

Adding to 1283158 its reverse (8513821), we get a palindrome (9796979).

It can be divided in two parts, 1283 and 158, that added together give a palindrome (1441).

The spelling of 1283158 in words is "one million, two hundred eighty-three thousand, one hundred fifty-eight".