1280199 has 8 divisors (see below), whose sum is σ = 1712880. Its totient is φ = 850496.

The previous prime is 1280183. The next prime is 1280221. The reversal of 1280199 is 9910821.

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

It is a cyclic number.

It is not a de Polignac number, because 1280199 - 2⁴ = 1280183 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280119) 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, 619 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (214110).

2^1280199 is an apocalyptic number.

1280199 is a deficient number, since it is larger than the sum of its proper divisors (432681).

1280199 is a wasteful number, since it uses less digits than its factorization.

1280199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1280199 is about 1131.4587928864. The cubic root of 1280199 is about 108.5823311337.

The spelling of 1280199 in words is "one million, two hundred eighty thousand, one hundred ninety-nine".