1283138 has 8 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 638020.

The previous prime is 1283137. The next prime is 1283159. The reversal of 1283138 is 8313821.

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

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1283137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

2^1283138 is an apocalyptic number.

1283138 is a deficient number, since it is larger than the sum of its proper divisors (652222).

1283138 is a wasteful number, since it uses less digits than its factorization.

1283138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3552.

The product of its digits is 1152, while the sum is 26.

The square root of 1283138 is about 1132.7568141486. The cubic root of 1283138 is about 108.6653597812.

Adding to 1283138 its reverse (8313821), we get a palindrome (9596959).

It can be divided in two parts, 12831 and 38, that multiplied together give a triangular number (487578 = T₉₈₇).

The spelling of 1283138 in words is "one million, two hundred eighty-three thousand, one hundred thirty-eight".