71369537 has 2 divisors, whose sum is σ = 71369538. Its totient is φ = 71369536.

The previous prime is 71369513. The next prime is 71369569. The reversal of 71369537 is 73596317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38925121 + 32444416 = 6239^2 + 5696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71369537 is a prime.

It is a super-2 number, since 2×71369537² = 10187221623188738, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 71369494 and 71369503.

It is not a weakly prime, because it can be changed into another prime (71360537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35684768 + 35684769.

It is an arithmetic number, because the mean of its divisors is an integer number (35684769).

Almost surely, 2^71369537 is an apocalyptic number.

It is an amenable number.

71369537 is a deficient number, since it is larger than the sum of its proper divisors (1).

71369537 is an equidigital number, since it uses as much as digits as its factorization.

71369537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 41.

The square root of 71369537 is about 8448.0493014660. The cubic root of 71369537 is about 414.7989290625.

The spelling of 71369537 in words is "seventy-one million, three hundred sixty-nine thousand, five hundred thirty-seven".