71318949 has 8 divisors (see below), whose sum is σ = 102406752. Its totient is φ = 43888560.

The previous prime is 71318921. The next prime is 71318969. The reversal of 71318949 is 94981317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71318949 - 2⁹ = 71318437 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 71318949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71318969) 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 7 ways as a sum of consecutive naturals, for example, 914307 + ... + 914384.

It is an arithmetic number, because the mean of its divisors is an integer number (12800844).

Almost surely, 2^71318949 is an apocalyptic number.

It is an amenable number.

71318949 is a deficient number, since it is larger than the sum of its proper divisors (31087803).

71318949 is a wasteful number, since it uses less digits than its factorization.

71318949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828707.

The product of its digits is 54432, while the sum is 42.

The square root of 71318949 is about 8445.0547067500. The cubic root of 71318949 is about 414.7009002724.

The spelling of 71318949 in words is "seventy-one million, three hundred eighteen thousand, nine hundred forty-nine".