23065545 has 16 divisors (see below), whose sum is σ = 36983232. Its totient is φ = 12275520.

The previous prime is 23065543. The next prime is 23065589. The reversal of 23065545 is 54556032.

It is not a de Polignac number, because 23065545 - 2¹ = 23065543 is a prime.

It is a super-2 number, since 2×23065545² = 1064038732294050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23065543) 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 15 ways as a sum of consecutive naturals, for example, 7219 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (2311452).

Almost surely, 2^23065545 is an apocalyptic number.

It is an amenable number.

23065545 is a deficient number, since it is larger than the sum of its proper divisors (13917687).

23065545 is a wasteful number, since it uses less digits than its factorization.

23065545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 23065545 is about 4802.6602003473. The cubic root of 23065545 is about 284.6565885262.

The spelling of 23065545 in words is "twenty-three million, sixty-five thousand, five hundred forty-five".