2230145 has 8 divisors (see below), whose sum is σ = 2833704. Its totient is φ = 1679104.

The previous prime is 2230139. The next prime is 2230147. The reversal of 2230145 is 5410322.

It can be written as a sum of positive squares in 4 ways, for example, as 153664 + 2076481 = 392^2 + 1441^2 .

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 2230145 - 2⁸ = 2229889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2230147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13034 + ... + 13203.

It is an arithmetic number, because the mean of its divisors is an integer number (354213).

2^2230145 is an apocalyptic number.

It is an amenable number.

2230145 is a deficient number, since it is larger than the sum of its proper divisors (603559).

2230145 is a wasteful number, since it uses less digits than its factorization.

2230145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26259.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2230145 is about 1493.3670011086. The cubic root of 2230145 is about 130.6504872315.

Adding to 2230145 its reverse (5410322), we get a palindrome (7640467).

The spelling of 2230145 in words is "two million, two hundred thirty thousand, one hundred forty-five".