23019541 has 4 divisors (see below), whose sum is σ = 23029900. Its totient is φ = 23009184.

The previous prime is 23019539. The next prime is 23019571. The reversal of 23019541 is 14591032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10699441 + 12320100 = 3271^2 + 3510^2 .

It is a cyclic number.

It is not a de Polignac number, because 23019541 - 2¹ = 23019539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (5757475).

Almost surely, 2^23019541 is an apocalyptic number.

It is an amenable number.

23019541 is a deficient number, since it is larger than the sum of its proper divisors (10359).

23019541 is an equidigital number, since it uses as much as digits as its factorization.

23019541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 23019541 is about 4797.8683808541. The cubic root of 23019541 is about 284.4672143242.

The spelling of 23019541 in words is "twenty-three million, nineteen thousand, five hundred forty-one".