71122665 has 8 divisors (see below), whose sum is σ = 113796288. Its totient is φ = 37932080.

The previous prime is 71122663. The next prime is 71122687. The reversal of 71122665 is 56622117.

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

It is not a de Polignac number, because 71122665 - 2¹ = 71122663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71122663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2370741 + ... + 2370770.

It is an arithmetic number, because the mean of its divisors is an integer number (14224536).

Almost surely, 2^71122665 is an apocalyptic number.

It is an amenable number.

71122665 is a deficient number, since it is larger than the sum of its proper divisors (42673623).

71122665 is a wasteful number, since it uses less digits than its factorization.

71122665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741519.

The product of its digits is 5040, while the sum is 30.

The square root of 71122665 is about 8433.4254606299. The cubic root of 71122665 is about 414.3201041324.

The spelling of 71122665 in words is "seventy-one million, one hundred twenty-two thousand, six hundred sixty-five".