1012851 has 32 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 551232.

The previous prime is 1012831. The next prime is 1012861. The reversal of 1012851 is 1582101.

It is not a de Polignac number, because 1012851 - 2¹⁰ = 1011827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4231 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (56160).

2^1012851 is an apocalyptic number.

1012851 is a deficient number, since it is larger than the sum of its proper divisors (784269).

1012851 is a wasteful number, since it uses less digits than its factorization.

1012851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 266 counting only the distinct ones).

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

The square root of 1012851 is about 1006.4049880640. The cubic root of 1012851 is about 100.4265446762.

Adding to 1012851 its reverse (1582101), we get a palindrome (2594952).

The spelling of 1012851 in words is "one million, twelve thousand, eight hundred fifty-one".