1047045831 has 16 divisors (see below), whose sum is σ = 1504757856. Its totient is φ = 643775616.

The previous prime is 1047045821. The next prime is 1047045833. The reversal of 1047045831 is 1385407401.

It is not a de Polignac number, because 1047045831 - 2¹¹ = 1047043783 is a prime.

It is a super-2 number, since 2×1047045831² = 2192609944428961122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1047045792 and 1047045801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047045833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36241 + ... + 58373.

It is an arithmetic number, because the mean of its divisors is an integer number (94047366).

Almost surely, 2^1047045831 is an apocalyptic number.

1047045831 is a deficient number, since it is larger than the sum of its proper divisors (457712025).

1047045831 is a wasteful number, since it uses less digits than its factorization.

1047045831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23362.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1047045831 is about 32358.0875670983. The cubic root of 1047045831 is about 1015.4422530188.

The spelling of 1047045831 in words is "one billion, forty-seven million, forty-five thousand, eight hundred thirty-one".