71321241 has 8 divisors (see below), whose sum is σ = 95789664. Its totient is φ = 47200160.

The previous prime is 71321233. The next prime is 71321249. The reversal of 71321241 is 14212317.

It is an interprime number because it is at equal distance from previous prime (71321233) and next prime (71321249).

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 71321241 - 2³ = 71321233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71321249) 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, 86355 + ... + 87176.

It is an arithmetic number, because the mean of its divisors is an integer number (11973708).

Almost surely, 2^71321241 is an apocalyptic number.

It is an amenable number.

71321241 is a deficient number, since it is larger than the sum of its proper divisors (24468423).

71321241 is a wasteful number, since it uses less digits than its factorization.

71321241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173671.

The product of its digits is 336, while the sum is 21.

The square root of 71321241 is about 8445.1904063792. The cubic root of 71321241 is about 414.7053426836.

Adding to 71321241 its reverse (14212317), we get a palindrome (85533558).

The spelling of 71321241 in words is "seventy-one million, three hundred twenty-one thousand, two hundred forty-one".