22310146 has 4 divisors (see below), whose sum is σ = 33465222. Its totient is φ = 11155072.

The previous prime is 22310131. The next prime is 22310159. The reversal of 22310146 is 64101322.

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., 21724921 + 585225 = 4661^2 + 765^2 .

It is a super-3 number, since 3×22310146³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577535 + ... + 5577538.

Almost surely, 2^22310146 is an apocalyptic number.

22310146 is a deficient number, since it is larger than the sum of its proper divisors (11155076).

22310146 is a wasteful number, since it uses less digits than its factorization.

22310146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11155075.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22310146 is about 4723.3617265672. The cubic root of 22310146 is about 281.5145227530.

Adding to 22310146 its reverse (64101322), we get a palindrome (86411468).

The spelling of 22310146 in words is "twenty-two million, three hundred ten thousand, one hundred forty-six".