1012885 has 4 divisors (see below), whose sum is σ = 1215468. Its totient is φ = 810304.

The previous prime is 1012861. The next prime is 1012903. The reversal of 1012885 is 5882101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 527076 = 697^2 + 726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012885 - 2⁹ = 1012373 is a prime.

It is a Duffinian number.

1012885 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101284 + ... + 101293.

It is an arithmetic number, because the mean of its divisors is an integer number (303867).

2^1012885 is an apocalyptic number.

It is an amenable number.

1012885 is a deficient number, since it is larger than the sum of its proper divisors (202583).

1012885 is an equidigital number, since it uses as much as digits as its factorization.

1012885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202582.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1012885 is about 1006.4218797304. The cubic root of 1012885 is about 100.4276683901.

Adding to 1012885 its reverse (5882101), we get a palindrome (6894986).

The spelling of 1012885 in words is "one million, twelve thousand, eight hundred eighty-five".