171154134 has 48 divisors (see below), whose sum is σ = 389293632. Its totient is φ = 56350728.

The previous prime is 171154133. The next prime is 171154153. The reversal of 171154134 is 431451171.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 171154098 and 171154107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171154133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38217 + ... + 42459.

It is an arithmetic number, because the mean of its divisors is an integer number (8110284).

Almost surely, 2^171154134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171154134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194646816).

171154134 is an abundant number, since it is smaller than the sum of its proper divisors (218139498).

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

171154134 is an equidigital number, since it uses as much as digits as its factorization.

171154134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343 (or 4331 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 171154134 is about 13082.5889639628. The cubic root of 171154134 is about 555.2166283635.

The spelling of 171154134 in words is "one hundred seventy-one million, one hundred fifty-four thousand, one hundred thirty-four".