24245145 has 48 divisors (see below), whose sum is σ = 45641232. Its totient is φ = 11857920.

The previous prime is 24245141. The next prime is 24245147. The reversal of 24245145 is 54154242.

It can be written as a sum of positive squares in 8 ways, for example, as 4981824 + 19263321 = 2232^2 + 4389^2 .

It is not a de Polignac number, because 24245145 - 2² = 24245141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24245141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30979 + ... + 31751.

It is an arithmetic number, because the mean of its divisors is an integer number (950859).

Almost surely, 2^24245145 is an apocalyptic number.

It is an amenable number.

24245145 is a deficient number, since it is larger than the sum of its proper divisors (21396087).

24245145 is a wasteful number, since it uses less digits than its factorization.

24245145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 839 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 24245145 is about 4923.9359256595. The cubic root of 24245145 is about 289.4287008860.

Adding to 24245145 its reverse (54154242), we get a palindrome (78399387).

It can be divided in two parts, 2424 and 5145, that added together give a square (7569 = 87²).

The spelling of 24245145 in words is "twenty-four million, two hundred forty-five thousand, one hundred forty-five".