22143135 has 64 divisors (see below), whose sum is σ = 43296768. Its totient is φ = 9444864.

The previous prime is 22143133. The next prime is 22143137. The reversal of 22143135 is 53134122.

It is an interprime number because it is at equal distance from previous prime (22143133) and next prime (22143137).

It is not a de Polignac number, because 22143135 - 2¹ = 22143133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143133) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 127909 + ... + 128081.

It is an arithmetic number, because the mean of its divisors is an integer number (676512).

Almost surely, 2^22143135 is an apocalyptic number.

22143135 is a deficient number, since it is larger than the sum of its proper divisors (21153633).

22143135 is a wasteful number, since it uses less digits than its factorization.

22143135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264.

The product of its digits is 720, while the sum is 21.

The square root of 22143135 is about 4705.6492644480. The cubic root of 22143135 is about 280.8103015880.

Adding to 22143135 its reverse (53134122), we get a palindrome (75277257).

The spelling of 22143135 in words is "twenty-two million, one hundred forty-three thousand, one hundred thirty-five".