171542112 has 96 divisors (see below), whose sum is σ = 516724992. Its totient is φ = 48812544.

The previous prime is 171542069. The next prime is 171542117. The reversal of 171542112 is 211245171.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171542117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266463 + ... + 267105.

It is an arithmetic number, because the mean of its divisors is an integer number (5382552).

Almost surely, 2^171542112 is an apocalyptic number.

171542112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171542112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258362496).

171542112 is an abundant number, since it is smaller than the sum of its proper divisors (345182880).

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

171542112 is a wasteful number, since it uses less digits than its factorization.

171542112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1052 counting only the distinct ones).

The product of its digits is 560, while the sum is 24.

The square root of 171542112 is about 13097.4085986503. The cubic root of 171542112 is about 555.6358397278.

Adding to 171542112 its reverse (211245171), we get a palindrome (382787283).

The spelling of 171542112 in words is "one hundred seventy-one million, five hundred forty-two thousand, one hundred twelve".