172216058 has 8 divisors (see below), whose sum is σ = 295227552. Its totient is φ = 73806876.

The previous prime is 172216039. The next prime is 172216061. The reversal of 172216058 is 850612271.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6150560 + ... + 6150587.

It is an arithmetic number, because the mean of its divisors is an integer number (36903444).

Almost surely, 2^172216058 is an apocalyptic number.

172216058 is a deficient number, since it is larger than the sum of its proper divisors (123011494).

172216058 is a wasteful number, since it uses less digits than its factorization.

172216058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12301156.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 172216058 is about 13123.1115974833. Note that the first 3 decimals coincide. The cubic root of 172216058 is about 556.3625402391.

The spelling of 172216058 in words is "one hundred seventy-two million, two hundred sixteen thousand, fifty-eight".