401841131 has 2 divisors, whose sum is σ = 401841132. Its totient is φ = 401841130.

The previous prime is 401841109. The next prime is 401841137. The reversal of 401841131 is 131148104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401841131 is a prime.

It is a super-2 number, since 2×401841131² = 322952589126718322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 401841097 and 401841106.

It is not a weakly prime, because it can be changed into another prime (401841137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200920565 + 200920566.

It is an arithmetic number, because the mean of its divisors is an integer number (200920566).

Almost surely, 2^401841131 is an apocalyptic number.

401841131 is a deficient number, since it is larger than the sum of its proper divisors (1).

401841131 is an equidigital number, since it uses as much as digits as its factorization.

401841131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 401841131 is about 20045.9754314925. The cubic root of 401841131 is about 737.9350338055.

Adding to 401841131 its reverse (131148104), we get a palindrome (532989235).

The spelling of 401841131 in words is "four hundred one million, eight hundred forty-one thousand, one hundred thirty-one".