71172106 has 4 divisors (see below), whose sum is σ = 106758162. Its totient is φ = 35586052.

The previous prime is 71172091. The next prime is 71172107. The reversal of 71172106 is 60127117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60127117 = 853 ⋅70489.

It can be written as a sum of positive squares in only one way, i.e., 67914081 + 3258025 = 8241^2 + 1805^2 .

It is not an unprimeable number, because it can be changed into a prime (71172107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17793025 + ... + 17793028.

Almost surely, 2^71172106 is an apocalyptic number.

71172106 is a deficient number, since it is larger than the sum of its proper divisors (35586056).

71172106 is a wasteful number, since it uses less digits than its factorization.

71172106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35586055.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 71172106 is about 8436.3562039544. The cubic root of 71172106 is about 414.4160869226.

The spelling of 71172106 in words is "seventy-one million, one hundred seventy-two thousand, one hundred six".