31601341 has 2 divisors, whose sum is σ = 31601342. Its totient is φ = 31601340.

The previous prime is 31601267. The next prime is 31601347. The reversal of 31601341 is 14310613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31125241 + 476100 = 5579^2 + 690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31601341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31601347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15800670 + 15800671.

It is an arithmetic number, because the mean of its divisors is an integer number (15800671).

Almost surely, 2^31601341 is an apocalyptic number.

It is an amenable number.

31601341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31601341 is an equidigital number, since it uses as much as digits as its factorization.

31601341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 31601341 is about 5621.5070043539. The cubic root of 31601341 is about 316.1562978605.

Adding to 31601341 its reverse (14310613), we get a palindrome (45911954).

The spelling of 31601341 in words is "thirty-one million, six hundred one thousand, three hundred forty-one".