172485494 has 8 divisors (see below), whose sum is σ = 259571928. Its totient is φ = 85961520.

The previous prime is 172485493. The next prime is 172485539. The reversal of 172485494 is 494584271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172485493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139847 + ... + 141074.

It is an arithmetic number, because the mean of its divisors is an integer number (32446491).

Almost surely, 2^172485494 is an apocalyptic number.

172485494 is a deficient number, since it is larger than the sum of its proper divisors (87086434).

172485494 is a wasteful number, since it uses less digits than its factorization.

172485494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281230.

The product of its digits is 322560, while the sum is 44.

The square root of 172485494 is about 13133.3732909714. The cubic root of 172485494 is about 556.6525364041.

The spelling of 172485494 in words is "one hundred seventy-two million, four hundred eighty-five thousand, four hundred ninety-four".