172136030 has 32 divisors (see below), whose sum is σ = 339383520. Its totient is φ = 62341120.

The previous prime is 172135993. The next prime is 172136053. The reversal of 172136030 is 30631271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 172135987 and 172136005.

It is a congruent number.

It is an unprimeable number.

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, 25226 + ... + 31314.

It is an arithmetic number, because the mean of its divisors is an integer number (10605735).

Almost surely, 2^172136030 is an apocalyptic number.

172136030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172136030 is a deficient number, since it is larger than the sum of its proper divisors (167247490).

172136030 is a wasteful number, since it uses less digits than its factorization.

172136030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 172136030 is about 13120.0621187554. The cubic root of 172136030 is about 556.2763471929.

The spelling of 172136030 in words is "one hundred seventy-two million, one hundred thirty-six thousand, thirty".