31934261 has 2 divisors, whose sum is σ = 31934262. Its totient is φ = 31934260.

The previous prime is 31934239. The next prime is 31934299. The reversal of 31934261 is 16243913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 6280036 = 5065^2 + 2506^2 .

It is a cyclic number.

It is not a de Polignac number, because 31934261 - 2¹⁸ = 31672117 is a prime.

It is a super-2 number, since 2×31934261² = 2039594051232242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31939261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15967130 + 15967131.

It is an arithmetic number, because the mean of its divisors is an integer number (15967131).

Almost surely, 2^31934261 is an apocalyptic number.

It is an amenable number.

31934261 is a deficient number, since it is larger than the sum of its proper divisors (1).

31934261 is an equidigital number, since it uses as much as digits as its factorization.

31934261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 31934261 is about 5651.0407006144. The cubic root of 31934261 is about 317.2626568537.

The spelling of 31934261 in words is "thirty-one million, nine hundred thirty-four thousand, two hundred sixty-one".