22016145 has 16 divisors (see below), whose sum is σ = 35824320. Its totient is φ = 11542464.

The previous prime is 22016131. The next prime is 22016161. The reversal of 22016145 is 54161022.

It is not a de Polignac number, because 22016145 - 2⁹ = 22015633 is a prime.

It is a super-2 number, since 2×22016145² = 969421281322050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11554 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (2239020).

Almost surely, 2^22016145 is an apocalyptic number.

It is an amenable number.

22016145 is a deficient number, since it is larger than the sum of its proper divisors (13808175).

22016145 is a wasteful number, since it uses less digits than its factorization.

22016145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24944.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 22016145 is about 4692.1365069657. The cubic root of 22016145 is about 280.2724601308.

Adding to 22016145 its reverse (54161022), we get a palindrome (76177167).

The spelling of 22016145 in words is "twenty-two million, sixteen thousand, one hundred forty-five".