172136541 has 8 divisors (see below), whose sum is σ = 230249920. Its totient is φ = 114390432.

The previous prime is 172136539. The next prime is 172136581. The reversal of 172136541 is 145631271.

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

It is not a de Polignac number, because 172136541 - 2¹ = 172136539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172136499 and 172136508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172136581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90721 + ... + 92598.

It is an arithmetic number, because the mean of its divisors is an integer number (28781240).

Almost surely, 2^172136541 is an apocalyptic number.

It is an amenable number.

172136541 is a deficient number, since it is larger than the sum of its proper divisors (58113379).

172136541 is a wasteful number, since it uses less digits than its factorization.

172136541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183635.

The product of its digits is 5040, while the sum is 30.

The square root of 172136541 is about 13120.0815927341. The cubic root of 172136541 is about 556.2768976431.

The spelling of 172136541 in words is "one hundred seventy-two million, one hundred thirty-six thousand, five hundred forty-one".