71344453 has 2 divisors, whose sum is σ = 71344454. Its totient is φ = 71344452.

The previous prime is 71344451. The next prime is 71344457. The reversal of 71344453 is 35444317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66879684 + 4464769 = 8178^2 + 2113^2 .

It is an emirp because it is prime and its reverse (35444317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71344453 - 2¹ = 71344451 is a prime.

Together with 71344451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71344451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35672226 + 35672227.

It is an arithmetic number, because the mean of its divisors is an integer number (35672227).

Almost surely, 2^71344453 is an apocalyptic number.

It is an amenable number.

71344453 is a deficient number, since it is larger than the sum of its proper divisors (1).

71344453 is an equidigital number, since it uses as much as digits as its factorization.

71344453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 31.

The square root of 71344453 is about 8446.5645679175. The cubic root of 71344453 is about 414.7503273948.

The spelling of 71344453 in words is "seventy-one million, three hundred forty-four thousand, four hundred fifty-three".