71383453 has 2 divisors, whose sum is σ = 71383454. Its totient is φ = 71383452.

The previous prime is 71383441. The next prime is 71383457. The reversal of 71383453 is 35438317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55086084 + 16297369 = 7422^2 + 4037^2 .

It is an emirp because it is prime and its reverse (35438317) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71383453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71383457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35691726 + 35691727.

It is an arithmetic number, because the mean of its divisors is an integer number (35691727).

Almost surely, 2^71383453 is an apocalyptic number.

It is an amenable number.

71383453 is a deficient number, since it is larger than the sum of its proper divisors (1).

71383453 is an equidigital number, since it uses as much as digits as its factorization.

71383453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 71383453 is about 8448.8728834088. The cubic root of 71383453 is about 414.8258871878.

The spelling of 71383453 in words is "seventy-one million, three hundred eighty-three thousand, four hundred fifty-three".