71750113 has 4 divisors (see below), whose sum is σ = 71767060. Its totient is φ = 71733168.

The previous prime is 71750111. The next prime is 71750131. The reversal of 71750113 is 31105717.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 44782864 + 26967249 = 6692^2 + 5193^2 .

It is a cyclic number.

It is not a de Polignac number, because 71750113 - 2¹ = 71750111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71750111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3931 + ... + 12607.

It is an arithmetic number, because the mean of its divisors is an integer number (17941765).

Almost surely, 2^71750113 is an apocalyptic number.

It is an amenable number.

71750113 is a deficient number, since it is larger than the sum of its proper divisors (16947).

71750113 is an equidigital number, since it uses as much as digits as its factorization.

71750113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16946.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 71750113 is about 8470.5438432252. The cubic root of 71750113 is about 415.5349234987.

The spelling of 71750113 in words is "seventy-one million, seven hundred fifty thousand, one hundred thirteen".