172161741 has 8 divisors (see below), whose sum is σ = 230957920. Its totient is φ = 114070032.

The previous prime is 172161727. The next prime is 172161751. The reversal of 172161741 is 147161271.

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

It is not a de Polignac number, because 172161741 - 2⁶ = 172161677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172161699 and 172161708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172161721) 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, 175546 + ... + 176523.

It is an arithmetic number, because the mean of its divisors is an integer number (28869740).

Almost surely, 2^172161741 is an apocalyptic number.

It is an amenable number.

172161741 is a deficient number, since it is larger than the sum of its proper divisors (58796179).

172161741 is a wasteful number, since it uses less digits than its factorization.

172161741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352235.

The product of its digits is 2352, while the sum is 30.

The square root of 172161741 is about 13121.0419174698. The cubic root of 172161741 is about 556.3040417806.

The spelling of 172161741 in words is "one hundred seventy-two million, one hundred sixty-one thousand, seven hundred forty-one".