401204143 has 4 divisors (see below), whose sum is σ = 401420448. Its totient is φ = 400987840.

The previous prime is 401204129. The next prime is 401204197. The reversal of 401204143 is 341402104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401204143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401204143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401204123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105346 + ... + 109087.

It is an arithmetic number, because the mean of its divisors is an integer number (100355112).

Almost surely, 2^401204143 is an apocalyptic number.

401204143 is a deficient number, since it is larger than the sum of its proper divisors (216305).

401204143 is a wasteful number, since it uses less digits than its factorization.

401204143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216304.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 401204143 is about 20030.0809534061. The cubic root of 401204143 is about 737.5449091871.

Adding to 401204143 its reverse (341402104), we get a palindrome (742606247).

The spelling of 401204143 in words is "four hundred one million, two hundred four thousand, one hundred forty-three".