1045831 has 4 divisors (see below), whose sum is σ = 1053000. Its totient is φ = 1038664.

The previous prime is 1045829. The next prime is 1045841. The reversal of 1045831 is 1385401.

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

It is a cyclic number.

It is not a de Polignac number, because 1045831 - 2¹ = 1045829 is a prime.

It is a super-2 number, since 2×1045831² = 2187524961122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3361 + ... + 3658.

It is an arithmetic number, because the mean of its divisors is an integer number (263250).

2^1045831 is an apocalyptic number.

1045831 is a deficient number, since it is larger than the sum of its proper divisors (7169).

1045831 is an equidigital number, since it uses as much as digits as its factorization.

1045831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1045831 is about 1022.6587896263. The cubic root of 1045831 is about 101.5049380014.

The spelling of 1045831 in words is "one million, forty-five thousand, eight hundred thirty-one".