22143150 has 36 divisors (see below), whose sum is σ = 59492472. Its totient is φ = 5904720.

The previous prime is 22143137. The next prime is 22143161. The reversal of 22143150 is 5134122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24154 + ... + 25053.

Almost surely, 2^22143150 is an apocalyptic number.

22143150 is an abundant number, since it is smaller than the sum of its proper divisors (37349322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22143150 is a wasteful number, since it uses less digits than its factorization.

22143150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49225 (or 49217 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22143150 is about 4705.6508582767. The cubic root of 22143150 is about 280.8103649959.

Adding to 22143150 its reverse (5134122), we get a palindrome (27277272).

Subtracting from 22143150 its reverse (5134122), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 22143150 in words is "twenty-two million, one hundred forty-three thousand, one hundred fifty".