1285011 has 32 divisors (see below), whose sum is σ = 2347520. Its totient is φ = 676512.

The previous prime is 1284991. The next prime is 1285021. The reversal of 1285011 is 1105821.

It is not a de Polignac number, because 1285011 - 2¹⁴ = 1268627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2196 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (73360).

2^1285011 is an apocalyptic number.

1285011 is a deficient number, since it is larger than the sum of its proper divisors (1062509).

1285011 is a wasteful number, since it uses less digits than its factorization.

1285011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1285011 is about 1133.5832567571. The cubic root of 1285011 is about 108.7182071153.

The spelling of 1285011 in words is "one million, two hundred eighty-five thousand, eleven".