171042354 has 56 divisors (see below), whose sum is σ = 439648320. Its totient is φ = 48866328.

The previous prime is 171042341. The next prime is 171042367. The reversal of 171042354 is 453240171.

It is an interprime number because it is at equal distance from previous prime (171042341) and next prime (171042367).

It is a super-2 number, since 2×171042354² = 58510973723722632, which contains 22 as substring.

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

It is a Curzon 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 27 ways as a sum of consecutive naturals, for example, 1827 + ... + 18585.

Almost surely, 2^171042354 is an apocalyptic number.

171042354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 171042354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219824160).

171042354 is an abundant number, since it is smaller than the sum of its proper divisors (268605966).

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

171042354 is an equidigital number, since it uses as much as digits as its factorization.

171042354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16786 (or 16771 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 171042354 is about 13078.3161760220. The cubic root of 171042354 is about 555.0957322079.

It can be divided in two parts, 171042 and 354, that added together give a square (171396 = 414²).

The spelling of 171042354 in words is "one hundred seventy-one million, forty-two thousand, three hundred fifty-four".