2023540561 has 8 divisors (see below), whose sum is σ = 2316164544. Its totient is φ = 1731803280.

The previous prime is 2023540559. The next prime is 2023540613. The reversal of 2023540561 is 1650453202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2023540561 - 2¹ = 2023540559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2023540061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216775 + ... + 225916.

It is an arithmetic number, because the mean of its divisors is an integer number (289520568).

Almost surely, 2^2023540561 is an apocalyptic number.

It is an amenable number.

2023540561 is a deficient number, since it is larger than the sum of its proper divisors (292623983).

2023540561 is an equidigital number, since it uses as much as digits as its factorization.

2023540561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443351.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2023540561 is about 44983.7810882989. The cubic root of 2023540561 is about 1264.8449894685.

Adding to 2023540561 its reverse (1650453202), we get a palindrome (3673993763).

The spelling of 2023540561 in words is "two billion, twenty-three million, five hundred forty thousand, five hundred sixty-one".