23103144 has 80 divisors (see below), whose sum is σ = 65536020. Its totient is φ = 7603200.

The previous prime is 23103137. The next prime is 23103149. The reversal of 23103144 is 44130132.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 1368900 = 4662^2 + 1170^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23103149) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65272 + ... + 65624.

Almost surely, 2^23103144 is an apocalyptic number.

23103144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32768010).

23103144 is an abundant number, since it is smaller than the sum of its proper divisors (42432876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23103144 is a wasteful number, since it uses less digits than its factorization.

23103144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23103144 is about 4806.5729995497. The cubic root of 23103144 is about 284.8111768643.

Adding to 23103144 its reverse (44130132), we get a palindrome (67233276).

The spelling of 23103144 in words is "twenty-three million, one hundred three thousand, one hundred forty-four".