31734361 has 2 divisors, whose sum is σ = 31734362. Its totient is φ = 31734360.

The previous prime is 31734337. The next prime is 31734407. The reversal of 31734361 is 16343713.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31304025 + 430336 = 5595^2 + 656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31734361 is a prime.

It is not a weakly prime, because it can be changed into another prime (31734761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15867180 + 15867181.

It is an arithmetic number, because the mean of its divisors is an integer number (15867181).

Almost surely, 2^31734361 is an apocalyptic number.

It is an amenable number.

31734361 is a deficient number, since it is larger than the sum of its proper divisors (1).

31734361 is an equidigital number, since it uses as much as digits as its factorization.

31734361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 31734361 is about 5633.3259270168. The cubic root of 31734361 is about 316.5992773805.

The spelling of 31734361 in words is "thirty-one million, seven hundred thirty-four thousand, three hundred sixty-one".