2231004145 has 8 divisors (see below), whose sum is σ = 2677665960. Its totient is φ = 1784496000.

The previous prime is 2231004137. The next prime is 2231004157. The reversal of 2231004145 is 5414001322.

It can be written as a sum of positive squares in 4 ways, for example, as 650862144 + 1580142001 = 25512^2 + 39751^2 .

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

It is not a de Polignac number, because 2231004145 - 2³ = 2231004137 is a prime.

It is a super-3 number, since 3×2231004145³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606 + ... + 66895.

It is an arithmetic number, because the mean of its divisors is an integer number (334708245).

Almost surely, 2^2231004145 is an apocalyptic number.

It is an amenable number.

2231004145 is a deficient number, since it is larger than the sum of its proper divisors (446661815).

2231004145 is an equidigital number, since it uses as much as digits as its factorization.

2231004145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76835.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2231004145 is about 47233.5065922487. The cubic root of 2231004145 is about 1306.6726241905.

Adding to 2231004145 its reverse (5414001322), we get a palindrome (7645005467).

The spelling of 2231004145 in words is "two billion, two hundred thirty-one million, four thousand, one hundred forty-five".