23045501 has 4 divisors (see below), whose sum is σ = 23073372. Its totient is φ = 23017632.

The previous prime is 23045497. The next prime is 23045573. The reversal of 23045501 is 10554032.

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 12773476 + 10272025 = 3574^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 23045501 - 2² = 23045497 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 (23045201) 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 3 ways as a sum of consecutive naturals, for example, 12656 + ... + 14361.

It is an arithmetic number, because the mean of its divisors is an integer number (5768343).

Almost surely, 2^23045501 is an apocalyptic number.

It is an amenable number.

23045501 is a deficient number, since it is larger than the sum of its proper divisors (27871).

23045501 is an equidigital number, since it uses as much as digits as its factorization.

23045501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27870.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 23045501 is about 4800.5729866340. The cubic root of 23045501 is about 284.5741089345.

Adding to 23045501 its reverse (10554032), we get a palindrome (33599533).

The spelling of 23045501 in words is "twenty-three million, forty-five thousand, five hundred one".