172941005 has 8 divisors (see below), whose sum is σ = 207958272. Its totient is φ = 138066768.

The previous prime is 172941001. The next prime is 172941011. The reversal of 172941005 is 500149271.

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

It is a cyclic number.

It is not a de Polignac number, because 172941005 - 2² = 172941001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172941001) 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 7 ways as a sum of consecutive naturals, for example, 33077 + ... + 37946.

It is an arithmetic number, because the mean of its divisors is an integer number (25994784).

Almost surely, 2^172941005 is an apocalyptic number.

It is an amenable number.

172941005 is a deficient number, since it is larger than the sum of its proper divisors (35017267).

172941005 is an equidigital number, since it uses as much as digits as its factorization.

172941005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71515.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 172941005 is about 13150.7035933444. The cubic root of 172941005 is about 557.1421205181.

The spelling of 172941005 in words is "one hundred seventy-two million, nine hundred forty-one thousand, five".