2251415145 has 256 divisors, whose sum is σ = 4936826880. Its totient is φ = 851558400.

The previous prime is 2251415071. The next prime is 2251415149. The reversal of 2251415145 is 5415141522.

2251415145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251415145 - 2⁸ = 2251414889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251415149) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 36908415 + ... + 36908475.

It is an arithmetic number, because the mean of its divisors is an integer number (19284480).

Almost surely, 2^2251415145 is an apocalyptic number.

It is an amenable number.

2251415145 is an abundant number, since it is smaller than the sum of its proper divisors (2685411735).

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

2251415145 is a wasteful number, since it uses less digits than its factorization.

2251415145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 8000, while the sum is 30.

The square root of 2251415145 is about 47449.0794958132. The cubic root of 2251415145 is about 1310.6453602017.

Adding to 2251415145 its reverse (5415141522), we get a palindrome (7666556667).

The spelling of 2251415145 in words is "two billion, two hundred fifty-one million, four hundred fifteen thousand, one hundred forty-five".