71157441 has 8 divisors (see below), whose sum is σ = 95008960. Its totient is φ = 47372112.

The previous prime is 71157409. The next prime is 71157491. The reversal of 71157441 is 14475117.

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

It is not a de Polignac number, because 71157441 - 2⁵ = 71157409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71157399 and 71157408.

It is not an unprimeable number, because it can be changed into a prime (71157491) 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, 13981 + ... + 18378.

It is an arithmetic number, because the mean of its divisors is an integer number (11876120).

Almost surely, 2^71157441 is an apocalyptic number.

It is an amenable number.

71157441 is a deficient number, since it is larger than the sum of its proper divisors (23851519).

71157441 is a wasteful number, since it uses less digits than its factorization.

71157441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33095.

The product of its digits is 3920, while the sum is 30.

The square root of 71157441 is about 8435.4870043169. The cubic root of 71157441 is about 414.3876215134.

The spelling of 71157441 in words is "seventy-one million, one hundred fifty-seven thousand, four hundred forty-one".