71480381 has 8 divisors (see below), whose sum is σ = 81824064. Its totient is φ = 61169760.

The previous prime is 71480371. The next prime is 71480401. The reversal of 71480381 is 18308417.

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 71480381 - 2⁶ = 71480317 is a prime.

It is a super-2 number, since 2×71480381² = 10218889735810322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71480371) 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, 3440 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (10228008).

Almost surely, 2^71480381 is an apocalyptic number.

It is an amenable number.

71480381 is a deficient number, since it is larger than the sum of its proper divisors (10343683).

71480381 is a wasteful number, since it uses less digits than its factorization.

71480381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16531.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 71480381 is about 8454.6070872631. The cubic root of 71480381 is about 415.0135593383.

Adding to 71480381 its reverse (18308417), we get a palindrome (89788798).

The spelling of 71480381 in words is "seventy-one million, four hundred eighty thousand, three hundred eighty-one".