172439054 has 8 divisors (see below), whose sum is σ = 258722400. Its totient is φ = 86198256.

The previous prime is 172439053. The next prime is 172439077. The reversal of 172439054 is 450934271.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172439053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2987 + ... + 18809.

It is an arithmetic number, because the mean of its divisors is an integer number (32340300).

Almost surely, 2^172439054 is an apocalyptic number.

172439054 is a deficient number, since it is larger than the sum of its proper divisors (86283346).

172439054 is a wasteful number, since it uses less digits than its factorization.

172439054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21274.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 172439054 is about 13131.6051570248. The cubic root of 172439054 is about 556.6025742043.

The spelling of 172439054 in words is "one hundred seventy-two million, four hundred thirty-nine thousand, fifty-four".