143032401 has 12 divisors (see below), whose sum is σ = 207990900. Its totient is φ = 94714080.

The previous prime is 143032391. The next prime is 143032429. The reversal of 143032401 is 104230341.

It can be written as a sum of positive squares in 2 ways, for example, as 65610000 + 77422401 = 8100^2 + 8799^2 .

It is not a de Polignac number, because 143032401 - 2⁷ = 143032273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143032301) 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, 51990 + ... + 54671.

It is an arithmetic number, because the mean of its divisors is an integer number (17332575).

Almost surely, 2^143032401 is an apocalyptic number.

It is an amenable number.

143032401 is a deficient number, since it is larger than the sum of its proper divisors (64958499).

143032401 is a wasteful number, since it uses less digits than its factorization.

143032401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106816 (or 106813 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143032401 is about 11959.6154202382. The cubic root of 143032401 is about 522.9716455886.

Adding to 143032401 its reverse (104230341), we get a palindrome (247262742).

The spelling of 143032401 in words is "one hundred forty-three million, thirty-two thousand, four hundred one".