31736141 has 2 divisors, whose sum is σ = 31736142. Its totient is φ = 31736140.

The previous prime is 31736101. The next prime is 31736143. The reversal of 31736141 is 14163713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29268100 + 2468041 = 5410^2 + 1571^2 .

It is an emirp because it is prime and its reverse (14163713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31736141 - 2²² = 27541837 is a prime.

Together with 31736143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31736141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31736143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15868070 + 15868071.

It is an arithmetic number, because the mean of its divisors is an integer number (15868071).

Almost surely, 2^31736141 is an apocalyptic number.

It is an amenable number.

31736141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31736141 is an equidigital number, since it uses as much as digits as its factorization.

31736141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 26.

The square root of 31736141 is about 5633.4839131749. The cubic root of 31736141 is about 316.6051966865.

Adding to 31736141 its reverse (14163713), we get a palindrome (45899854).

The spelling of 31736141 in words is "thirty-one million, seven hundred thirty-six thousand, one hundred forty-one".