10851813 has 20 divisors (see below), whose sum is σ = 18527520. Its totient is φ = 6200712.

The previous prime is 10851809. The next prime is 10851817. The reversal of 10851813 is 31815801.

It is an interprime number because it is at equal distance from previous prime (10851809) and next prime (10851817).

It is not a de Polignac number, because 10851813 - 2² = 10851809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10851817) 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 19 ways as a sum of consecutive naturals, for example, 9003 + ... + 10136.

It is an arithmetic number, because the mean of its divisors is an integer number (926376).

Almost surely, 2^10851813 is an apocalyptic number.

It is an amenable number.

10851813 is a deficient number, since it is larger than the sum of its proper divisors (7675707).

10851813 is an equidigital number, since it uses as much as digits as its factorization.

10851813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19158 (or 19149 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 10851813 is about 3294.2090097624. The cubic root of 10851813 is about 221.3948089646.

It can be divided in two parts, 10851 and 813, that added together give a square (11664 = 108²).

The spelling of 10851813 in words is "ten million, eight hundred fifty-one thousand, eight hundred thirteen".