23225130 has 80 divisors (see below), whose sum is σ = 63745704. Its totient is φ = 6065280.

The previous prime is 23225129. The next prime is 23225149. The reversal of 23225130 is 3152232.

It can be written as a sum of positive squares in 4 ways, for example, as 19686969 + 3538161 = 4437^2 + 1881^2 .

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

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 42660 + ... + 43200.

Almost surely, 2^23225130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23225130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31872852).

23225130 is an abundant number, since it is smaller than the sum of its proper divisors (40520574).

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

23225130 is a wasteful number, since it uses less digits than its factorization.

23225130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23225130 is about 4819.2457916151. The cubic root of 23225130 is about 285.3115706148.

Adding to 23225130 its reverse (3152232), we get a palindrome (26377362).

The spelling of 23225130 in words is "twenty-three million, two hundred twenty-five thousand, one hundred thirty".