71918241 has 8 divisors (see below), whose sum is σ = 96008640. Its totient is φ = 47886672.

The previous prime is 71918239. The next prime is 71918257. The reversal of 71918241 is 14281917.

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

It is not a de Polignac number, because 71918241 - 2¹ = 71918239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71918221) 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, 11770 + ... + 16803.

It is an arithmetic number, because the mean of its divisors is an integer number (12001080).

Almost surely, 2^71918241 is an apocalyptic number.

It is an amenable number.

71918241 is a deficient number, since it is larger than the sum of its proper divisors (24090399).

71918241 is a wasteful number, since it uses less digits than its factorization.

71918241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29415.

The product of its digits is 4032, while the sum is 33.

The square root of 71918241 is about 8480.4623105111. The cubic root of 71918241 is about 415.8592368455.

The spelling of 71918241 in words is "seventy-one million, nine hundred eighteen thousand, two hundred forty-one".