23145061 has 4 divisors (see below), whose sum is σ = 24151392. Its totient is φ = 22138732.

The previous prime is 23145053. The next prime is 23145071. The reversal of 23145061 is 16054132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23145061 - 2³ = 23145053 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145011) 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, 503131 + ... + 503176.

It is an arithmetic number, because the mean of its divisors is an integer number (6037848).

Almost surely, 2^23145061 is an apocalyptic number.

It is an amenable number.

23145061 is a deficient number, since it is larger than the sum of its proper divisors (1006331).

23145061 is a wasteful number, since it uses less digits than its factorization.

23145061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006330.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23145061 is about 4810.9314067029. The cubic root of 23145061 is about 284.9833210717.

Adding to 23145061 its reverse (16054132), we get a palindrome (39199193).

The spelling of 23145061 in words is "twenty-three million, one hundred forty-five thousand, sixty-one".