1285922 has 8 divisors (see below), whose sum is σ = 2104272. Its totient is φ = 584500.

The previous prime is 1285913. The next prime is 1285937. The reversal of 1285922 is 2295821.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 29204 + ... + 29247.

It is an arithmetic number, because the mean of its divisors is an integer number (263034).

2^1285922 is an apocalyptic number.

1285922 is a deficient number, since it is larger than the sum of its proper divisors (818350).

1285922 is a wasteful number, since it uses less digits than its factorization.

1285922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58464.

The product of its digits is 2880, while the sum is 29.

The square root of 1285922 is about 1133.9850087193. The cubic root of 1285922 is about 108.7438927297.

The spelling of 1285922 in words is "one million, two hundred eighty-five thousand, nine hundred twenty-two".