71918041 has 8 divisors (see below), whose sum is σ = 82006344. Its totient is φ = 62480640.

The previous prime is 71918039. The next prime is 71918053. The reversal of 71918041 is 14081917.

It can be written as a sum of positive squares in 4 ways, for example, as 8874441 + 63043600 = 2979^2 + 7940^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71918041 - 2¹ = 71918039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71917994 and 71918012.

It is not an unprimeable number, because it can be changed into a prime (71918641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162490 + ... + 162931.

It is an arithmetic number, because the mean of its divisors is an integer number (10250793).

Almost surely, 2^71918041 is an apocalyptic number.

It is an amenable number.

71918041 is a deficient number, since it is larger than the sum of its proper divisors (10088303).

71918041 is a wasteful number, since it uses less digits than its factorization.

71918041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325451.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 71918041 is about 8480.4505186930. The cubic root of 71918041 is about 415.8588513525.

Adding to 71918041 its reverse (14081917), we get a palindrome (85999958).

The spelling of 71918041 in words is "seventy-one million, nine hundred eighteen thousand, forty-one".