143233401 has 32 divisors (see below), whose sum is σ = 202704768. Its totient is φ = 89856000.

The previous prime is 143233357. The next prime is 143233403. The reversal of 143233401 is 104332341.

It is not a de Polignac number, because 143233401 - 2⁷ = 143233273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143233403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570526 + ... + 570776.

It is an arithmetic number, because the mean of its divisors is an integer number (6334524).

Almost surely, 2^143233401 is an apocalyptic number.

It is an amenable number.

143233401 is a deficient number, since it is larger than the sum of its proper divisors (59471367).

143233401 is a wasteful number, since it uses less digits than its factorization.

143233401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 143233401 is about 11968.0157503239. The cubic root of 143233401 is about 523.2165040934.

Adding to 143233401 its reverse (104332341), we get a palindrome (247565742).

The spelling of 143233401 in words is "one hundred forty-three million, two hundred thirty-three thousand, four hundred one".