71483081 has 4 divisors (see below), whose sum is σ = 71896452. Its totient is φ = 71069712.

The previous prime is 71483077. The next prime is 71483089. The reversal of 71483081 is 18038417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59923081 + 11560000 = 7741^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 71483081 - 2² = 71483077 is a prime.

It is a super-2 number, since 2×71483081² = 10219661738505122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71483089) 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 3 ways as a sum of consecutive naturals, for example, 206426 + ... + 206771.

It is an arithmetic number, because the mean of its divisors is an integer number (17974113).

Almost surely, 2^71483081 is an apocalyptic number.

It is an amenable number.

71483081 is a deficient number, since it is larger than the sum of its proper divisors (413371).

71483081 is a wasteful number, since it uses less digits than its factorization.

71483081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413370.

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

The square root of 71483081 is about 8454.7667620106. The cubic root of 71483081 is about 415.0187846532.

The spelling of 71483081 in words is "seventy-one million, four hundred eighty-three thousand, eighty-one".