71319000 has 64 divisors (see below), whose sum is σ = 222524640. Its totient is φ = 19017600.

The previous prime is 71318987. The next prime is 71319007. The reversal of 71319000 is 91317.

It is a super-2 number, since 2×71319000² = 10172799522000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71319007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8887 + ... + 14886.

Almost surely, 2^71319000 is an apocalyptic number.

It is an amenable number.

71319000 is an abundant number, since it is smaller than the sum of its proper divisors (151205640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71319000 is a wasteful number, since it uses less digits than its factorization.

71319000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23797 (or 23783 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 71319000 is about 8445.0577262681. The cubic root of 71319000 is about 414.7009991229.

The spelling of 71319000 in words is "seventy-one million, three hundred nineteen thousand".