22002143 has 8 divisors (see below), whose sum is σ = 22362480. Its totient is φ = 21644800.

The previous prime is 22002121. The next prime is 22002163. The reversal of 22002143 is 34120022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22002143 - 2⁸ = 22001887 is a prime.

It is a super-3 number, since 3×22002143³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17471 + ... + 18687.

It is an arithmetic number, because the mean of its divisors is an integer number (2795310).

Almost surely, 2^22002143 is an apocalyptic number.

22002143 is a deficient number, since it is larger than the sum of its proper divisors (360337).

22002143 is a wasteful number, since it uses less digits than its factorization.

22002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22002143 is about 4690.6441988281. The cubic root of 22002143 is about 280.2130309069.

Adding to 22002143 its reverse (34120022), we get a palindrome (56122165).

It can be divided in two parts, 22002 and 143, that multiplied together give a triangular number (3146286 = T₂₅₀₈).

The spelling of 22002143 in words is "twenty-two million, two thousand, one hundred forty-three".