22002145 has 16 divisors (see below), whose sum is σ = 30056832. Its totient is φ = 15304960.

The previous prime is 22002121. The next prime is 22002163. The reversal of 22002145 is 54120022.

It is not a de Polignac number, because 22002145 - 2¹³ = 21993953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7432 + ... + 9961.

It is an arithmetic number, because the mean of its divisors is an integer number (1878552).

Almost surely, 2^22002145 is an apocalyptic number.

It is an amenable number.

22002145 is a deficient number, since it is larger than the sum of its proper divisors (8054687).

22002145 is a wasteful number, since it uses less digits than its factorization.

22002145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17432.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22002145 is about 4690.6444120185. The cubic root of 22002145 is about 280.2130393974.

Adding to 22002145 its reverse (54120022), we get a palindrome (76122167).

The spelling of 22002145 in words is "twenty-two million, two thousand, one hundred forty-five".