71542853 has 2 divisors, whose sum is σ = 71542854. Its totient is φ = 71542852.

The previous prime is 71542843. The next prime is 71542879. The reversal of 71542853 is 35824517.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53919649 + 17623204 = 7343^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 71542853 - 2¹⁰ = 71541829 is a prime.

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 (71542843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35771426 + 35771427.

It is an arithmetic number, because the mean of its divisors is an integer number (35771427).

Almost surely, 2^71542853 is an apocalyptic number.

It is an amenable number.

71542853 is a deficient number, since it is larger than the sum of its proper divisors (1).

71542853 is an equidigital number, since it uses as much as digits as its factorization.

71542853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 71542853 is about 8458.3008340919. The cubic root of 71542853 is about 415.1344278306.

The spelling of 71542853 in words is "seventy-one million, five hundred forty-two thousand, eight hundred fifty-three".