71345949 has 8 divisors (see below), whose sum is σ = 95626752. Its totient is φ = 47314560.

The previous prime is 71345947. The next prime is 71345959. The reversal of 71345949 is 94954317.

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

It is not a de Polignac number, because 71345949 - 2¹ = 71345947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71345949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71345941) 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, 61684 + ... + 62829.

It is an arithmetic number, because the mean of its divisors is an integer number (11953344).

Almost surely, 2^71345949 is an apocalyptic number.

It is an amenable number.

71345949 is a deficient number, since it is larger than the sum of its proper divisors (24280803).

71345949 is a wasteful number, since it uses less digits than its factorization.

71345949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124707.

The product of its digits is 136080, while the sum is 42.

The square root of 71345949 is about 8446.6531241670. The cubic root of 71345949 is about 414.7532262988.

The spelling of 71345949 in words is "seventy-one million, three hundred forty-five thousand, nine hundred forty-nine".