23144761 has 4 divisors (see below), whose sum is σ = 23184000. Its totient is φ = 23105524.

The previous prime is 23144749. The next prime is 23144767. The reversal of 23144761 is 16744132.

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 a de Polignac number, because none of the positive numbers 2^k-23144761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144767) 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, 18721 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (5796000).

Almost surely, 2^23144761 is an apocalyptic number.

23144761 is the 2152-nd centered decagonal number.

It is an amenable number.

23144761 is a deficient number, since it is larger than the sum of its proper divisors (39239).

23144761 is an equidigital number, since it uses as much as digits as its factorization.

23144761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39238.

The product of its digits is 4032, while the sum is 28.

The square root of 23144761 is about 4810.9002276081. The cubic root of 23144761 is about 284.9820897743.

Adding to 23144761 its reverse (16744132), we get a palindrome (39888893).

The spelling of 23144761 in words is "twenty-three million, one hundred forty-four thousand, seven hundred sixty-one".