172159134 has 16 divisors (see below), whose sum is σ = 393506688. Its totient is φ = 49188312.

The previous prime is 172159129. The next prime is 172159199. The reversal of 172159134 is 431951271.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172159095 and 172159104.

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 7 ways as a sum of consecutive naturals, for example, 2049472 + ... + 2049555.

It is an arithmetic number, because the mean of its divisors is an integer number (24594168).

Almost surely, 2^172159134 is an apocalyptic number.

172159134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

172159134 is an abundant number, since it is smaller than the sum of its proper divisors (221347554).

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

172159134 is a wasteful number, since it uses less digits than its factorization.

172159134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099039.

The product of its digits is 7560, while the sum is 33.

The square root of 172159134 is about 13120.9425728489. The cubic root of 172159134 is about 556.3012337778.

The spelling of 172159134 in words is "one hundred seventy-two million, one hundred fifty-nine thousand, one hundred thirty-four".