71375813 has 4 divisors (see below), whose sum is σ = 71529120. Its totient is φ = 71222508.

The previous prime is 71375771. The next prime is 71375819. The reversal of 71375813 is 31857317.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71375813 - 2⁶ = 71375749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71375819) 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 in 3 ways as a sum of consecutive naturals, for example, 75953 + ... + 76886.

It is an arithmetic number, because the mean of its divisors is an integer number (17882280).

Almost surely, 2^71375813 is an apocalyptic number.

It is an amenable number.

71375813 is a deficient number, since it is larger than the sum of its proper divisors (153307).

71375813 is a wasteful number, since it uses less digits than its factorization.

71375813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153306.

The product of its digits is 17640, while the sum is 35.

The square root of 71375813 is about 8448.4207399963. The cubic root of 71375813 is about 414.8110873861.

The spelling of 71375813 in words is "seventy-one million, three hundred seventy-five thousand, eight hundred thirteen".