71512853 has 2 divisors, whose sum is σ = 71512854. Its totient is φ = 71512852.

The previous prime is 71512817. The next prime is 71512873. The reversal of 71512853 is 35821517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63091249 + 8421604 = 7943^2 + 2902^2 .

It is a cyclic number.

It is not a de Polignac number, because 71512853 - 2¹⁰ = 71511829 is a prime.

It is a super-2 number, since 2×71512853² = 10228176288399218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71512873) 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, 35756426 + 35756427.

It is an arithmetic number, because the mean of its divisors is an integer number (35756427).

Almost surely, 2^71512853 is an apocalyptic number.

It is an amenable number.

71512853 is a deficient number, since it is larger than the sum of its proper divisors (1).

71512853 is an equidigital number, since it uses as much as digits as its factorization.

71512853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 32.

The square root of 71512853 is about 8456.5272423141. The cubic root of 71512853 is about 415.0763937364.

The spelling of 71512853 in words is "seventy-one million, five hundred twelve thousand, eight hundred fifty-three".