23045247 has 6 divisors (see below), whose sum is σ = 33287592. Its totient is φ = 15363492.

The previous prime is 23045237. The next prime is 23045249. The reversal of 23045247 is 74254032.

It is not a de Polignac number, because 23045247 - 2¹⁰ = 23044223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23045247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23045249) 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 5 ways as a sum of consecutive naturals, for example, 1280283 + ... + 1280300.

It is an arithmetic number, because the mean of its divisors is an integer number (5547932).

Almost surely, 2^23045247 is an apocalyptic number.

23045247 is a deficient number, since it is larger than the sum of its proper divisors (10242345).

23045247 is a wasteful number, since it uses less digits than its factorization.

23045247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560589 (or 2560586 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 23045247 is about 4800.5465313858. The cubic root of 23045247 is about 284.5730634363.

Adding to 23045247 its reverse (74254032), we get a palindrome (97299279).

The spelling of 23045247 in words is "twenty-three million, forty-five thousand, two hundred forty-seven".