71068241 has 4 divisors (see below), whose sum is σ = 73518900. Its totient is φ = 68617584.

The previous prime is 71068237. The next prime is 71068243. The reversal of 71068241 is 14286017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14286017 = 61 ⋅234197.

It can be written as a sum of positive squares in 2 ways, for example, as 39753025 + 31315216 = 6305^2 + 5596^2 .

It is a cyclic number.

It is not a de Polignac number, because 71068241 - 2² = 71068237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 2450629 = 71068241 / (7 + 1 + 0 + 6 + 8 + 2 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71068243) 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, 1225286 + ... + 1225343.

It is an arithmetic number, because the mean of its divisors is an integer number (18379725).

Almost surely, 2^71068241 is an apocalyptic number.

It is an amenable number.

71068241 is a deficient number, since it is larger than the sum of its proper divisors (2450659).

71068241 is a wasteful number, since it uses less digits than its factorization.

71068241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450658.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 71068241 is about 8430.1981589996. The cubic root of 71068241 is about 414.2143960979.

The spelling of 71068241 in words is "seventy-one million, sixty-eight thousand, two hundred forty-one".