143452242 has 64 divisors (see below), whose sum is σ = 350208000. Its totient is φ = 43323984.

The previous prime is 143452213. The next prime is 143452249. The reversal of 143452242 is 242254341.

143452242 is a `hidden beast` number, since 1 + 434 + 5 + 224 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (143452249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20559 + ... + 26637.

It is an arithmetic number, because the mean of its divisors is an integer number (5472000).

Almost surely, 2^143452242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143452242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175104000).

143452242 is an abundant number, since it is smaller than the sum of its proper divisors (206755758).

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

143452242 is a wasteful number, since it uses less digits than its factorization.

143452242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132 (or 6126 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 143452242 is about 11977.1550044240. The cubic root of 143452242 is about 523.4828361956.

The spelling of 143452242 in words is "one hundred forty-three million, four hundred fifty-two thousand, two hundred forty-two".