71301331 has 8 divisors (see below), whose sum is σ = 73583504. Its totient is φ = 69037920.

The previous prime is 71301317. The next prime is 71301359. The reversal of 71301331 is 13310317.

It is a happy number.

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 71301331 - 2⁵ = 71301299 is a prime.

It is a super-2 number, since 2×71301331² = 10167759604743122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71301299 and 71301308.

It is not an unprimeable number, because it can be changed into a prime (71301031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3241 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (9197938).

Almost surely, 2^71301331 is an apocalyptic number.

71301331 is a deficient number, since it is larger than the sum of its proper divisors (2282173).

71301331 is a wasteful number, since it uses less digits than its factorization.

71301331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 71301331 is about 8444.0115466525. The cubic root of 71301331 is about 414.6667494506. Note that the first 3 decimals are identical.

Adding to 71301331 its reverse (13310317), we get a palindrome (84611648).

The spelling of 71301331 in words is "seventy-one million, three hundred one thousand, three hundred thirty-one".