143422312 has 32 divisors (see below), whose sum is σ = 295980480. Its totient is φ = 64610560.

The previous prime is 143422303. The next prime is 143422327. The reversal of 143422312 is 213224341.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733 + ... + 17155.

It is an arithmetic number, because the mean of its divisors is an integer number (9249390).

Almost surely, 2^143422312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143422312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147990240).

143422312 is an abundant number, since it is smaller than the sum of its proper divisors (152558168).

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

143422312 is a wasteful number, since it uses less digits than its factorization.

143422312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553 (or 14549 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 143422312 is about 11975.9054772489. The cubic root of 143422312 is about 523.4464270259.

Adding to 143422312 its reverse (213224341), we get a palindrome (356646653).

The spelling of 143422312 in words is "one hundred forty-three million, four hundred twenty-two thousand, three hundred twelve".