2415121145 has 4 divisors (see below), whose sum is σ = 2898145380. Its totient is φ = 1932096912.

The previous prime is 2415121139. The next prime is 2415121157. The reversal of 2415121145 is 5411215142.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 293505424 + 2121615721 = 17132^2 + 46061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2415121145 - 2⁶ = 2415121081 is a prime.

It is a super-2 number, since 2×2415121145² = 11665620290052222050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241512110 + ... + 241512119.

It is an arithmetic number, because the mean of its divisors is an integer number (724536345).

Almost surely, 2^2415121145 is an apocalyptic number.

It is an amenable number.

2415121145 is a deficient number, since it is larger than the sum of its proper divisors (483024235).

2415121145 is an equidigital number, since it uses as much as digits as its factorization.

2415121145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483024234.

The product of its digits is 1600, while the sum is 26.

The square root of 2415121145 is about 49143.8820709150. The cubic root of 2415121145 is about 1341.6718467623.

Adding to 2415121145 its reverse (5411215142), we get a palindrome (7826336287).

The spelling of 2415121145 in words is "two billion, four hundred fifteen million, one hundred twenty-one thousand, one hundred forty-five".