2453145220 has 24 divisors (see below), whose sum is σ = 5454641304. Its totient is φ = 923536896.

The previous prime is 2453145151. The next prime is 2453145223. The reversal of 2453145220 is 225413542.

It can be written as a sum of positive squares in 4 ways, for example, as 575136324 + 1878008896 = 23982^2 + 43336^2 .

It is not an unprimeable number, because it can be changed into a prime (2453145223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3607227 + ... + 3607906.

It is an arithmetic number, because the mean of its divisors is an integer number (227276721).

Almost surely, 2^2453145220 is an apocalyptic number.

2453145220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2453145220 is an abundant number, since it is smaller than the sum of its proper divisors (3001496084).

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

2453145220 is a wasteful number, since it uses less digits than its factorization.

2453145220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7215159 (or 7215157 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2453145220 is about 49529.2360126824. The cubic root of 2453145220 is about 1348.6763835169.

Adding to 2453145220 its reverse (225413542), we get a palindrome (2678558762).

It can be divided in two parts, 24531 and 45220, that added together give a triangular number (69751 = T₃₇₃).

The spelling of 2453145220 in words is "two billion, four hundred fifty-three million, one hundred forty-five thousand, two hundred twenty".