31741961 has 2 divisors, whose sum is σ = 31741962. Its totient is φ = 31741960.

The previous prime is 31741949. The next prime is 31741993. The reversal of 31741961 is 16914713.

It is an a-pointer prime, because the next prime (31741993) can be obtained adding 31741961 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29767936 + 1974025 = 5456^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 31741961 - 2¹⁸ = 31479817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (31746961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15870980 + 15870981.

It is an arithmetic number, because the mean of its divisors is an integer number (15870981).

Almost surely, 2^31741961 is an apocalyptic number.

It is an amenable number.

31741961 is a deficient number, since it is larger than the sum of its proper divisors (1).

31741961 is an equidigital number, since it uses as much as digits as its factorization.

31741961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 31741961 is about 5634.0004437345. Note that the first 3 decimals coincide. The cubic root of 31741961 is about 316.6245492770.

The spelling of 31741961 in words is "thirty-one million, seven hundred forty-one thousand, nine hundred sixty-one".