172136341 has 4 divisors (see below), whose sum is σ = 185377612. Its totient is φ = 158895072.

The previous prime is 172136303. The next prime is 172136351. The reversal of 172136341 is 143631271.

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 65448100 + 106688241 = 8090^2 + 10329^2 .

It is a cyclic number.

It is not a de Polignac number, because 172136341 - 2¹⁵ = 172103573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172136351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620616 + ... + 6620641.

It is an arithmetic number, because the mean of its divisors is an integer number (46344403).

Almost surely, 2^172136341 is an apocalyptic number.

It is an amenable number.

172136341 is a deficient number, since it is larger than the sum of its proper divisors (13241271).

172136341 is a wasteful number, since it uses less digits than its factorization.

172136341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13241270.

The product of its digits is 3024, while the sum is 28.

The square root of 172136341 is about 13120.0739708281. The cubic root of 172136341 is about 556.2766822028.

The spelling of 172136341 in words is "one hundred seventy-two million, one hundred thirty-six thousand, three hundred forty-one".