23144135 has 32 divisors (see below), whose sum is σ = 33288192. Its totient is φ = 15114240.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144135 is 53144132.

It is not a de Polignac number, because 23144135 - 2¹⁰ = 23143111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23144135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23144137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89927 + ... + 90183.

It is an arithmetic number, because the mean of its divisors is an integer number (1040256).

Almost surely, 2^23144135 is an apocalyptic number.

23144135 is a deficient number, since it is larger than the sum of its proper divisors (10144057).

23144135 is a wasteful number, since it uses less digits than its factorization.

23144135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

The product of its digits is 1440, while the sum is 23.

The square root of 23144135 is about 4810.8351665797. The cubic root of 23144135 is about 284.9795204326.

Adding to 23144135 its reverse (53144132), we get a palindrome (76288267).

The spelling of 23144135 in words is "twenty-three million, one hundred forty-four thousand, one hundred thirty-five".