31841141 has 2 divisors, whose sum is σ = 31841142. Its totient is φ = 31841140.

The previous prime is 31841099. The next prime is 31841143. The reversal of 31841141 is 14114813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30747025 + 1094116 = 5545^2 + 1046^2 .

It is a cyclic number.

It is not a de Polignac number, because 31841141 - 2⁶ = 31841077 is a prime.

Together with 31841143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31841143) 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 as a sum of consecutive naturals, namely, 15920570 + 15920571.

It is an arithmetic number, because the mean of its divisors is an integer number (15920571).

Almost surely, 2^31841141 is an apocalyptic number.

It is an amenable number.

31841141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31841141 is an equidigital number, since it uses as much as digits as its factorization.

31841141 is an odious number, because the sum of its binary digits is odd.

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

The square root of 31841141 is about 5642.7954951425. The cubic root of 31841141 is about 316.9539783322.

Adding to 31841141 its reverse (14114813), we get a palindrome (45955954).

The spelling of 31841141 in words is "thirty-one million, eight hundred forty-one thousand, one hundred forty-one".