143404001 has 12 divisors (see below), whose sum is σ = 162996372. Its totient is φ = 125401824.

The previous prime is 143403991. The next prime is 143404067. The reversal of 143404001 is 100404341.

It can be written as a sum of positive squares in 2 ways, for example, as 15171025 + 128232976 = 3895^2 + 11324^2 .

It is not a de Polignac number, because 143404001 - 2¹⁰ = 143402977 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143404091) 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, 10586 + ... + 19971.

It is an arithmetic number, because the mean of its divisors is an integer number (13583031).

Almost surely, 2^143404001 is an apocalyptic number.

It is an amenable number.

143404001 is a deficient number, since it is larger than the sum of its proper divisors (19592371).

143404001 is a wasteful number, since it uses less digits than its factorization.

143404001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30608 (or 30589 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143404001 is about 11975.1409595044. The cubic root of 143404001 is about 523.4241496100.

Adding to 143404001 its reverse (100404341), we get a palindrome (243808342).

The spelling of 143404001 in words is "one hundred forty-three million, four hundred four thousand, one".