171372113 has 4 divisors (see below), whose sum is σ = 186951408. Its totient is φ = 155792820.

The previous prime is 171372109. The next prime is 171372137. The reversal of 171372113 is 311273171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311273171 = 11 ⋅28297561.

It is a cyclic number.

It is not a de Polignac number, because 171372113 - 2² = 171372109 is a prime.

It is a super-2 number, since 2×171372113² = 58736802228169538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171372143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7789631 + ... + 7789652.

It is an arithmetic number, because the mean of its divisors is an integer number (46737852).

Almost surely, 2^171372113 is an apocalyptic number.

It is an amenable number.

171372113 is a deficient number, since it is larger than the sum of its proper divisors (15579295).

171372113 is a wasteful number, since it uses less digits than its factorization.

171372113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15579294.

The product of its digits is 882, while the sum is 26.

The square root of 171372113 is about 13090.9171947576. The cubic root of 171372113 is about 555.4522331956.

The spelling of 171372113 in words is "one hundred seventy-one million, three hundred seventy-two thousand, one hundred thirteen".