22530000146 has 4 divisors (see below), whose sum is σ = 33795000222. Its totient is φ = 11265000072.

The previous prime is 22530000133. The next prime is 22530000167. The reversal of 22530000146 is 64100003522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64100003522 = 2 ⋅32050001761.

It can be written as a sum of positive squares in only one way, i.e., 22323646921 + 206353225 = 149411^2 + 14365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5632500035 + ... + 5632500038.

Almost surely, 2^22530000146 is an apocalyptic number.

22530000146 is a deficient number, since it is larger than the sum of its proper divisors (11265000076).

22530000146 is a wasteful number, since it uses less digits than its factorization.

22530000146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11265000075.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 22530000146 its reverse (64100003522), we get a palindrome (86630003668).

The spelling of 22530000146 in words is "twenty-two billion, five hundred thirty million, one hundred forty-six", and thus it is an aban number.