171438713 has 4 divisors (see below), whose sum is σ = 173136228. Its totient is φ = 169741200.

The previous prime is 171438703. The next prime is 171438733. The reversal of 171438713 is 317834171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168298729 + 3139984 = 12973^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 171438713 - 2⁸ = 171438457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171438703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848606 + ... + 848807.

It is an arithmetic number, because the mean of its divisors is an integer number (43284057).

Almost surely, 2^171438713 is an apocalyptic number.

It is an amenable number.

171438713 is a deficient number, since it is larger than the sum of its proper divisors (1697515).

171438713 is a wasteful number, since it uses less digits than its factorization.

171438713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697514.

The product of its digits is 14112, while the sum is 35.

The square root of 171438713 is about 13093.4606960880. The cubic root of 171438713 is about 555.5241786383.

The spelling of 171438713 in words is "one hundred seventy-one million, four hundred thirty-eight thousand, seven hundred thirteen".