2223146 has 4 divisors (see below), whose sum is σ = 3334722. Its totient is φ = 1111572.

The previous prime is 2223119. The next prime is 2223149. The reversal of 2223146 is 6413222.

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

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 546121 = 1295^2 + 739^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2223149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555785 + ... + 555788.

2^2223146 is an apocalyptic number.

2223146 is a deficient number, since it is larger than the sum of its proper divisors (1111576).

2223146 is a wasteful number, since it uses less digits than its factorization.

2223146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111575.

The product of its digits is 576, while the sum is 20.

The square root of 2223146 is about 1491.0217972920. The cubic root of 2223146 is about 130.5136678726.

Adding to 2223146 its reverse (6413222), we get a palindrome (8636368).

The spelling of 2223146 in words is "two million, two hundred twenty-three thousand, one hundred forty-six".