71383253 has 2 divisors, whose sum is σ = 71383254. Its totient is φ = 71383252.

The previous prime is 71383229. The next prime is 71383267. The reversal of 71383253 is 35238317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59938564 + 11444689 = 7742^2 + 3383^2 .

It is an emirp because it is prime and its reverse (35238317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71383253 - 2⁶ = 71383189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71383453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35691626 + 35691627.

It is an arithmetic number, because the mean of its divisors is an integer number (35691627).

Almost surely, 2^71383253 is an apocalyptic number.

It is an amenable number.

71383253 is a deficient number, since it is larger than the sum of its proper divisors (1).

71383253 is an equidigital number, since it uses as much as digits as its factorization.

71383253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 71383253 is about 8448.8610475022. The cubic root of 71383253 is about 414.8254997719.

The spelling of 71383253 in words is "seventy-one million, three hundred eighty-three thousand, two hundred fifty-three".