1280213 has 8 divisors (see below), whose sum is σ = 1406496. Its totient is φ = 1155600.

The previous prime is 1280183. The next prime is 1280221. The reversal of 1280213 is 3120821.

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 1280213 - 2¹⁰ = 1279189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1280191 and 1280200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280113) 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, 1670 + ... + 2312.

It is an arithmetic number, because the mean of its divisors is an integer number (175812).

2^1280213 is an apocalyptic number.

It is an amenable number.

1280213 is a deficient number, since it is larger than the sum of its proper divisors (126283).

1280213 is a wasteful number, since it uses less digits than its factorization.

1280213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1280213 is about 1131.4649795729. The cubic root of 1280213 is about 108.5827269438.

The spelling of 1280213 in words is "one million, two hundred eighty thousand, two hundred thirteen".