71319033 has 12 divisors (see below), whose sum is σ = 106569060. Its totient is φ = 45906336.

The previous prime is 71319007. The next prime is 71319041. The reversal of 71319033 is 33091317.

It can be written as a sum of positive squares in 2 ways, for example, as 42029289 + 29289744 = 6483^2 + 5412^2 .

It is not a de Polignac number, because 71319033 - 2⁶ = 71318969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71318988 and 71319006.

It is not an unprimeable number, because it can be changed into a prime (71319043) 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 11 ways as a sum of consecutive naturals, for example, 136366 + ... + 136887.

It is an arithmetic number, because the mean of its divisors is an integer number (8880755).

Almost surely, 2^71319033 is an apocalyptic number.

It is an amenable number.

71319033 is a deficient number, since it is larger than the sum of its proper divisors (35250027).

71319033 is a wasteful number, since it uses less digits than its factorization.

71319033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273288 (or 273285 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 71319033 is about 8445.0596800733. The cubic root of 71319033 is about 414.7010630850.

The spelling of 71319033 in words is "seventy-one million, three hundred nineteen thousand, thirty-three".