172874454 has 8 divisors (see below), whose sum is σ = 345748920. Its totient is φ = 57624816.

The previous prime is 172874431. The next prime is 172874459. The reversal of 172874454 is 454478271.

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

172874454 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172874459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14406199 + ... + 14406210.

It is an arithmetic number, because the mean of its divisors is an integer number (43218615).

Almost surely, 2^172874454 is an apocalyptic number.

172874454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172874454 is a wasteful number, since it uses less digits than its factorization.

172874454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28812414.

The product of its digits is 250880, while the sum is 42.

The square root of 172874454 is about 13148.1730289801. The cubic root of 172874454 is about 557.0706450412.

The spelling of 172874454 in words is "one hundred seventy-two million, eight hundred seventy-four thousand, four hundred fifty-four".