143542427 has 16 divisors (see below), whose sum is σ = 166636800. Its totient is φ = 121111200.

The previous prime is 143542423. The next prime is 143542439. The reversal of 143542427 is 724245341.

It is not a de Polignac number, because 143542427 - 2² = 143542423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143542393 and 143542402.

It is not an unprimeable number, because it can be changed into a prime (143542423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136052 + ... + 137102.

It is an arithmetic number, because the mean of its divisors is an integer number (10414800).

Almost surely, 2^143542427 is an apocalyptic number.

143542427 is a deficient number, since it is larger than the sum of its proper divisors (23094373).

143542427 is a wasteful number, since it uses less digits than its factorization.

143542427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346.

The product of its digits is 26880, while the sum is 32.

The square root of 143542427 is about 11980.9192886022. The cubic root of 143542427 is about 523.5925136024.

Adding to 143542427 its reverse (724245341), we get a palindrome (867787768).

The spelling of 143542427 in words is "one hundred forty-three million, five hundred forty-two thousand, four hundred twenty-seven".