172351242 has 48 divisors (see below), whose sum is σ = 449242560. Its totient is φ = 46650816.

The previous prime is 172351241. The next prime is 172351247. The reversal of 172351242 is 242153271.

172351242 is a `hidden beast` number, since 1 + 72 + 351 + 242 = 666.

172351242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (172351241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33603 + ... + 38390.

It is an arithmetic number, because the mean of its divisors is an integer number (9359220).

Almost surely, 2^172351242 is an apocalyptic number.

172351242 is an abundant number, since it is smaller than the sum of its proper divisors (276891318).

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

172351242 is a wasteful number, since it uses less digits than its factorization.

172351242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72027 (or 72024 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 172351242 is about 13128.2611948422. The cubic root of 172351242 is about 556.5080776600.

The spelling of 172351242 in words is "one hundred seventy-two million, three hundred fifty-one thousand, two hundred forty-two".