1283500 has 48 divisors (see below), whose sum is σ = 2987712. Its totient is φ = 480000.

The previous prime is 1283479. The next prime is 1283509. The reversal of 1283500 is 53821.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1283509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8425 + ... + 8575.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2^1283500 is an apocalyptic number.

1283500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1283500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493856).

1283500 is an abundant number, since it is smaller than the sum of its proper divisors (1704212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1283500 is a wasteful number, since it uses less digits than its factorization.

1283500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1283500 is about 1132.9165900454. The cubic root of 1283500 is about 108.6755777421.

The spelling of 1283500 in words is "one million, two hundred eighty-three thousand, five hundred".