400144141 has 4 divisors (see below), whose sum is σ = 400752000. Its totient is φ = 399536284.

The previous prime is 400144099. The next prime is 400144153. The reversal of 400144141 is 141441004.

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 400144141 - 2¹⁷ = 400013069 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 (400141141) 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, 302941 + ... + 304258.

It is an arithmetic number, because the mean of its divisors is an integer number (100188000).

Almost surely, 2^400144141 is an apocalyptic number.

It is an amenable number.

400144141 is a deficient number, since it is larger than the sum of its proper divisors (607859).

400144141 is an equidigital number, since it uses as much as digits as its factorization.

400144141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607858.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 400144141 is about 20003.6032004237. The cubic root of 400144141 is about 736.8947924301.

Adding to 400144141 its reverse (141441004), we get a palindrome (541585145).

The spelling of 400144141 in words is "four hundred million, one hundred forty-four thousand, one hundred forty-one".