23030545 has 4 divisors (see below), whose sum is σ = 27636660. Its totient is φ = 18424432.

The previous prime is 23030543. The next prime is 23030549. The reversal of 23030545 is 54503032.

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 8346321 + 14684224 = 2889^2 + 3832^2 .

It is a cyclic number.

It is not a de Polignac number, because 23030545 - 2¹ = 23030543 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23030543) 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, 2303050 + ... + 2303059.

It is an arithmetic number, because the mean of its divisors is an integer number (6909165).

Almost surely, 2^23030545 is an apocalyptic number.

It is an amenable number.

23030545 is a deficient number, since it is larger than the sum of its proper divisors (4606115).

23030545 is an equidigital number, since it uses as much as digits as its factorization.

23030545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606114.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23030545 is about 4799.0150031022. The cubic root of 23030545 is about 284.5125349291.

Adding to 23030545 its reverse (54503032), we get a palindrome (77533577).

The spelling of 23030545 in words is "twenty-three million, thirty thousand, five hundred forty-five".