172730110 has 32 divisors (see below), whose sum is σ = 357319872. Its totient is φ = 58890240.

The previous prime is 172730071. The next prime is 172730113. The reversal of 172730110 is 11037271.

It is a super-2 number, since 2×172730110² = 59671381801224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172730113) 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 15 ways as a sum of consecutive naturals, for example, 5854 + ... + 19486.

It is an arithmetic number, because the mean of its divisors is an integer number (11166246).

Almost surely, 2^172730110 is an apocalyptic number.

172730110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172730110 is an abundant number, since it is smaller than the sum of its proper divisors (184589762).

172730110 is a wasteful number, since it uses less digits than its factorization.

172730110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13828.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 172730110 is about 13142.6827550542. The cubic root of 172730110 is about 556.9155571658.

Adding to 172730110 its reverse (11037271), we get a palindrome (183767381).

The spelling of 172730110 in words is "one hundred seventy-two million, seven hundred thirty thousand, one hundred ten".