1281300 has 36 divisors (see below), whose sum is σ = 3708096. Its totient is φ = 341600.

The previous prime is 1281283. The next prime is 1281317. The reversal of 1281300 is 31821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1281283) and next prime (1281317).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1281300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1836 + ... + 2435.

2^1281300 is an apocalyptic number.

1281300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1281300 is an abundant number, since it is smaller than the sum of its proper divisors (2426796).

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

1281300 is a wasteful number, since it uses less digits than its factorization.

1281300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288 (or 4281 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1281300 is about 1131.9452283569. The cubic root of 1281300 is about 108.6134499653.

The spelling of 1281300 in words is "one million, two hundred eighty-one thousand, three hundred".