401142041 has 4 divisors (see below), whose sum is σ = 422254800. Its totient is φ = 380029284.

The previous prime is 401142031. The next prime is 401142061. The reversal of 401142041 is 140241104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401142041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (401142031) 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, 10556351 + ... + 10556388.

It is an arithmetic number, because the mean of its divisors is an integer number (105563700).

Almost surely, 2^401142041 is an apocalyptic number.

It is an amenable number.

401142041 is a deficient number, since it is larger than the sum of its proper divisors (21112759).

401142041 is a wasteful number, since it uses less digits than its factorization.

401142041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112758.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 401142041 is about 20028.5306750146. The cubic root of 401142041 is about 737.5068526032.

Adding to 401142041 its reverse (140241104), we get a palindrome (541383145).

The spelling of 401142041 in words is "four hundred one million, one hundred forty-two thousand, forty-one".