1299000 has 64 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 345600.

The previous prime is 1298989. The next prime is 1299007. The reversal of 1299000 is 9921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2784 + ... + 3216.

2^1299000 is an apocalyptic number.

1299000 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 1299000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1299000 is an abundant number, since it is smaller than the sum of its proper divisors (2763240).

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

1299000 is a wasteful number, since it uses less digits than its factorization.

1299000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1299000 is about 1139.7368117245. The cubic root of 1299000 is about 109.1112966946. Note that the first 3 decimals are identical.

The spelling of 1299000 in words is "one million, two hundred ninety-nine thousand".