23144261 has 8 divisors (see below), whose sum is σ = 27842880. Its totient is φ = 18793728.

The previous prime is 23144243. The next prime is 23144273. The reversal of 23144261 is 16244132.

23144261 = 609² + 610² + ... + 665².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23144261 is a prime.

It is a super-2 number, since 2×23144261² = 1071313634472242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23144201) 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 7 ways as a sum of consecutive naturals, for example, 86876 + ... + 87141.

It is an arithmetic number, because the mean of its divisors is an integer number (3480360).

Almost surely, 2^23144261 is an apocalyptic number.

It is an amenable number.

23144261 is a deficient number, since it is larger than the sum of its proper divisors (4698619).

23144261 is a wasteful number, since it uses less digits than its factorization.

23144261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174043.

The product of its digits is 1152, while the sum is 23.

The square root of 23144261 is about 4810.8482620012. The cubic root of 23144261 is about 284.9800375881.

Adding to 23144261 its reverse (16244132), we get a palindrome (39388393).

The spelling of 23144261 in words is "twenty-three million, one hundred forty-four thousand, two hundred sixty-one".