172494312 has 32 divisors (see below), whose sum is σ = 453933600. Its totient is φ = 54471744.

The previous prime is 172494307. The next prime is 172494313. The reversal of 172494312 is 213494271.

It is not an unprimeable number, because it can be changed into a prime (172494313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188683 + ... + 189594.

It is an arithmetic number, because the mean of its divisors is an integer number (14185425).

Almost surely, 2^172494312 is an apocalyptic number.

172494312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172494312 is an abundant number, since it is smaller than the sum of its proper divisors (281439288).

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

172494312 is a wasteful number, since it uses less digits than its factorization.

172494312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378305 (or 378301 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 172494312 is about 13133.7089963194. The cubic root of 172494312 is about 556.6620221843.

The spelling of 172494312 in words is "one hundred seventy-two million, four hundred ninety-four thousand, three hundred twelve".