1071812 has 24 divisors (see below), whose sum is σ = 2170560. Its totient is φ = 453600.

The previous prime is 1071803. The next prime is 1071817. The reversal of 1071812 is 2181701.

It is a super-2 number, since 2×1071812² = 2297561926688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1071817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2639 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (90440).

2^1071812 is an apocalyptic number.

It is an amenable number.

1071812 is an abundant number, since it is smaller than the sum of its proper divisors (1098748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1071812 is a wasteful number, since it uses less digits than its factorization.

1071812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1071812 is about 1035.2835360422. The cubic root of 1071812 is about 102.3386157574.

The spelling of 1071812 in words is "one million, seventy-one thousand, eight hundred twelve".