172317130 has 32 divisors (see below), whose sum is σ = 324777600. Its totient is φ = 65739072.

The previous prime is 172317121. The next prime is 172317133. The reversal of 172317130 is 31713271.

172317130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 172317095 and 172317104.

It is not an unprimeable number, because it can be changed into a prime (172317133) 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 15 ways as a sum of consecutive naturals, for example, 20491 + ... + 27649.

It is an arithmetic number, because the mean of its divisors is an integer number (10149300).

Almost surely, 2^172317130 is an apocalyptic number.

172317130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172317130 is a deficient number, since it is larger than the sum of its proper divisors (152460470).

172317130 is a wasteful number, since it uses less digits than its factorization.

172317130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7278.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 172317130 is about 13126.9619486003. The cubic root of 172317130 is about 556.4713602839.

The spelling of 172317130 in words is "one hundred seventy-two million, three hundred seventeen thousand, one hundred thirty".