2238171145 has 8 divisors (see below), whose sum is σ = 3069491904. Its totient is φ = 1534745904.

The previous prime is 2238171121. The next prime is 2238171149. The reversal of 2238171145 is 5411718322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2238171145 - 2¹¹ = 2238169097 is a prime.

It is a super-2 number, since 2×2238171145² = 10018820148621222050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2238171145.

It is not an unprimeable number, because it can be changed into a prime (2238171149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31973839 + ... + 31973908.

It is an arithmetic number, because the mean of its divisors is an integer number (383686488).

Almost surely, 2^2238171145 is an apocalyptic number.

It is an amenable number.

2238171145 is a deficient number, since it is larger than the sum of its proper divisors (831320759).

2238171145 is an equidigital number, since it uses as much as digits as its factorization.

2238171145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63947759.

The product of its digits is 13440, while the sum is 34.

The square root of 2238171145 is about 47309.3135122462. The cubic root of 2238171145 is about 1308.0703374798.

Adding to 2238171145 its reverse (5411718322), we get a palindrome (7649889467).

The spelling of 2238171145 in words is "two billion, two hundred thirty-eight million, one hundred seventy-one thousand, one hundred forty-five".