1543143222 has 24 divisors (see below), whose sum is σ = 3352313640. Its totient is φ = 513021600.

The previous prime is 1543143211. The next prime is 1543143223. The reversal of 1543143222 is 2223413451.

1543143222 is a `hidden beast` number, since 1 + 5 + 431 + 4 + 3 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543143223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106279 + ... + 119922.

It is an arithmetic number, because the mean of its divisors is an integer number (139679735).

Almost surely, 2^1543143222 is an apocalyptic number.

1543143222 is an abundant number, since it is smaller than the sum of its proper divisors (1809170418).

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

1543143222 is a wasteful number, since it uses less digits than its factorization.

1543143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226588 (or 226585 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 1543143222 is about 39282.8616829273. The cubic root of 1543143222 is about 1155.5854860337.

Adding to 1543143222 its reverse (2223413451), we get a palindrome (3766556673).

It can be divided in two parts, 15431 and 43222, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 1543143222 in words is "one billion, five hundred forty-three million, one hundred forty-three thousand, two hundred twenty-two".