71805241 has 8 divisors (see below), whose sum is σ = 75254400. Its totient is φ = 68383392.

The previous prime is 71805221. The next prime is 71805257. The reversal of 71805241 is 14250817.

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 71805241 - 2¹³ = 71797049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71805221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (9406800).

Almost surely, 2^71805241 is an apocalyptic number.

It is an amenable number.

71805241 is a deficient number, since it is larger than the sum of its proper divisors (3449159).

71805241 is a wasteful number, since it uses less digits than its factorization.

71805241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 71805241 is about 8473.7973187940. The cubic root of 71805241 is about 415.6413193585.

It can be divided in two parts, 7180 and 5241, that added together give a palindrome (12421).

The spelling of 71805241 in words is "seventy-one million, eight hundred five thousand, two hundred forty-one".