400001141 has 4 divisors (see below), whose sum is σ = 400382784. Its totient is φ = 399619500.

The previous prime is 400001137. The next prime is 400001159. The reversal of 400001141 is 141100004.

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 not a de Polignac number, because 400001141 - 2² = 400001137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189245 + ... + 191346.

It is an arithmetic number, because the mean of its divisors is an integer number (100095696).

Almost surely, 2^400001141 is an apocalyptic number.

It is an amenable number.

400001141 is a deficient number, since it is larger than the sum of its proper divisors (381643).

400001141 is a wasteful number, since it uses less digits than its factorization.

400001141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381642.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 400001141 is about 20000.0285249797. The cubic root of 400001141 is about 736.8070003074.

Adding to 400001141 its reverse (141100004), we get a palindrome (541101145).

The spelling of 400001141 in words is "four hundred million, one thousand, one hundred forty-one".