172734190 has 8 divisors (see below), whose sum is σ = 310921560. Its totient is φ = 69093672.

The previous prime is 172734169. The next prime is 172734203. The reversal of 172734190 is 91437271.

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

It is a super-2 number, since 2×172734190² = 59674200789912200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 8636700 + ... + 8636719.

It is an arithmetic number, because the mean of its divisors is an integer number (38865195).

Almost surely, 2^172734190 is an apocalyptic number.

172734190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172734190 is a deficient number, since it is larger than the sum of its proper divisors (138187370).

172734190 is a wasteful number, since it uses less digits than its factorization.

172734190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17273426.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 172734190 is about 13142.8379735885. The cubic root of 172734190 is about 556.9199420365.

The spelling of 172734190 in words is "one hundred seventy-two million, seven hundred thirty-four thousand, one hundred ninety".