1045020541 has 4 divisors (see below), whose sum is σ = 1045155132. Its totient is φ = 1044885952.

The previous prime is 1045020527. The next prime is 1045020551. The reversal of 1045020541 is 1450205401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 412699225 + 632321316 = 20315^2 + 25146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045020541 - 2²⁷ = 910802813 is a prime.

It is a super-2 number, since 2×1045020541² = 2184135862223865362, 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 (1045020521) 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, 54886 + ... + 71431.

It is an arithmetic number, because the mean of its divisors is an integer number (261288783).

Almost surely, 2^1045020541 is an apocalyptic number.

It is an amenable number.

1045020541 is a deficient number, since it is larger than the sum of its proper divisors (134591).

1045020541 is an equidigital number, since it uses as much as digits as its factorization.

1045020541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134590.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1045020541 is about 32326.7774607987. Note that the first 3 decimals coincide. The cubic root of 1045020541 is about 1014.7871105841.

Adding to 1045020541 its reverse (1450205401), we get a palindrome (2495225942).

The spelling of 1045020541 in words is "one billion, forty-five million, twenty thousand, five hundred forty-one".