172143374 has 8 divisors (see below), whose sum is σ = 278077800. Its totient is φ = 79450776.

The previous prime is 172143353. The next prime is 172143421. The reversal of 172143374 is 473341271.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172143374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3310424 + ... + 3310475.

It is an arithmetic number, because the mean of its divisors is an integer number (34759725).

Almost surely, 2^172143374 is an apocalyptic number.

172143374 is a deficient number, since it is larger than the sum of its proper divisors (105934426).

172143374 is a wasteful number, since it uses less digits than its factorization.

172143374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620914.

The product of its digits is 14112, while the sum is 32.

The square root of 172143374 is about 13120.3419924939. The cubic root of 172143374 is about 556.2842580593.

The spelling of 172143374 in words is "one hundred seventy-two million, one hundred forty-three thousand, three hundred seventy-four".