1031812 has 6 divisors (see below), whose sum is σ = 1805678. Its totient is φ = 515904.

The previous prime is 1031809. The next prime is 1031813. The reversal of 1031812 is 2181301.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 352836 = 824^2 + 594^2 .

It is not an unprimeable number, because it can be changed into a prime (1031813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128973 + ... + 128980.

2^1031812 is an apocalyptic number.

It is an amenable number.

1031812 is a deficient number, since it is larger than the sum of its proper divisors (773866).

1031812 is a wasteful number, since it uses less digits than its factorization.

1031812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257957 (or 257955 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1031812 is about 1015.7814725619. The cubic root of 1031812 is about 101.0493501272.

The spelling of 1031812 in words is "one million, thirty-one thousand, eight hundred twelve".