71344313 has 2 divisors, whose sum is σ = 71344314. Its totient is φ = 71344312.

The previous prime is 71344277. The next prime is 71344331. The reversal of 71344313 is 31344317.

Together with next prime (71344331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60341824 + 11002489 = 7768^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 71344313 - 2²⁰ = 70295737 is a prime.

It is not a weakly prime, because it can be changed into another prime (71344913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35672156 + 35672157.

It is an arithmetic number, because the mean of its divisors is an integer number (35672157).

Almost surely, 2^71344313 is an apocalyptic number.

It is an amenable number.

71344313 is a deficient number, since it is larger than the sum of its proper divisors (1).

71344313 is an equidigital number, since it uses as much as digits as its factorization.

71344313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 26.

The square root of 71344313 is about 8446.5562805205. The cubic root of 71344313 is about 414.7500561050.

The spelling of 71344313 in words is "seventy-one million, three hundred forty-four thousand, three hundred thirteen".