172242160 has 40 divisors (see below), whose sum is σ = 401376096. Its totient is φ = 68739840.

The previous prime is 172242157. The next prime is 172242167. The reversal of 172242160 is 61242271.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172242167) 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, 36750 + ... + 41170.

Almost surely, 2^172242160 is an apocalyptic number.

172242160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172242160 is an abundant number, since it is smaller than the sum of its proper divisors (229133936).

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

172242160 is a wasteful number, since it uses less digits than its factorization.

172242160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4915 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 172242160 is about 13124.1060647954. The cubic root of 172242160 is about 556.3906472607.

The spelling of 172242160 in words is "one hundred seventy-two million, two hundred forty-two thousand, one hundred sixty".