71172122 has 8 divisors (see below), whose sum is σ = 122009376. Its totient is φ = 30502332.

The previous prime is 71172107. The next prime is 71172161. The reversal of 71172122 is 22127117.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2541848 + ... + 2541875.

It is an arithmetic number, because the mean of its divisors is an integer number (15251172).

Almost surely, 2^71172122 is an apocalyptic number.

71172122 is a deficient number, since it is larger than the sum of its proper divisors (50837254).

71172122 is a wasteful number, since it uses less digits than its factorization.

71172122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083732.

The product of its digits is 392, while the sum is 23.

The square root of 71172122 is about 8436.3571522311. The cubic root of 71172122 is about 414.4161179772.

Adding to 71172122 its reverse (22127117), we get a palindrome (93299239).

The spelling of 71172122 in words is "seventy-one million, one hundred seventy-two thousand, one hundred twenty-two".