172140365 has 8 divisors (see below), whose sum is σ = 213232128. Its totient is φ = 133269840.

The previous prime is 172140359. The next prime is 172140379. The reversal of 172140365 is 563041271.

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

It is not a de Polignac number, because 172140365 - 2⁶ = 172140301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 555137 + ... + 555446.

It is an arithmetic number, because the mean of its divisors is an integer number (26654016).

Almost surely, 2^172140365 is an apocalyptic number.

It is an amenable number.

172140365 is a deficient number, since it is larger than the sum of its proper divisors (41091763).

172140365 is a wasteful number, since it uses less digits than its factorization.

172140365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110619.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 172140365 is about 13120.2273227258. The cubic root of 172140365 is about 556.2810168287.

The spelling of 172140365 in words is "one hundred seventy-two million, one hundred forty thousand, three hundred sixty-five".