23145030 has 48 divisors (see below), whose sum is σ = 60493680. Its totient is φ = 6139584.

The previous prime is 23145019. The next prime is 23145053. The reversal of 23145030 is 3054132.

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

It is a junction number, because it is equal to n+sod(n) for n = 23144994 and 23145012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20049 + ... + 21171.

It is an arithmetic number, because the mean of its divisors is an integer number (1260285).

Almost surely, 2^23145030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23145030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30246840).

23145030 is an abundant number, since it is smaller than the sum of its proper divisors (37348650).

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

23145030 is a wasteful number, since it uses less digits than its factorization.

23145030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365 (or 1362 counting only the distinct ones).

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

The square root of 23145030 is about 4810.9281848724. The cubic root of 23145030 is about 284.9831938382.

Adding to 23145030 its reverse (3054132), we get a palindrome (26199162).

The spelling of 23145030 in words is "twenty-three million, one hundred forty-five thousand, thirty".