1045032021 has 12 divisors (see below), whose sum is σ = 1646717280. Its totient is φ = 633352680.

The previous prime is 1045031993. The next prime is 1045032029. The reversal of 1045032021 is 1202305401.

1045032021 is a `hidden beast` number, since 10 + 450 + 3 + 202 + 1 = 666.

It is not a de Polignac number, because 1045032021 - 2¹³ = 1045023829 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1045031985 and 1045032003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045032029) 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 11 ways as a sum of consecutive naturals, for example, 5277841 + ... + 5278038.

It is an arithmetic number, because the mean of its divisors is an integer number (137226440).

Almost surely, 2^1045032021 is an apocalyptic number.

1045032021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1045032021 is a deficient number, since it is larger than the sum of its proper divisors (601685259).

1045032021 is a wasteful number, since it uses less digits than its factorization.

1045032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555896 (or 10555893 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1045032021 is about 32326.9550220864. The cubic root of 1045032021 is about 1014.7908265281.

Adding to 1045032021 its reverse (1202305401), we get a palindrome (2247337422).

The spelling of 1045032021 in words is "one billion, forty-five million, thirty-two thousand, twenty-one".