1283147 has 8 divisors (see below), whose sum is σ = 1368576. Its totient is φ = 1200232.

The previous prime is 1283137. The next prime is 1283159. The reversal of 1283147 is 7413821.

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

It is not a de Polignac number, because 1283147 - 2⁶ = 1283083 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 488 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (171072).

2^1283147 is an apocalyptic number.

1283147 is a deficient number, since it is larger than the sum of its proper divisors (85429).

1283147 is a wasteful number, since it uses less digits than its factorization.

1283147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its digits is 1344, while the sum is 26.

The square root of 1283147 is about 1132.7607867507. The cubic root of 1283147 is about 108.6656138422.

Adding to 1283147 its reverse (7413821), we get a palindrome (8696968).

The spelling of 1283147 in words is "one million, two hundred eighty-three thousand, one hundred forty-seven".