171382090 has 64 divisors (see below), whose sum is σ = 362672640. Its totient is φ = 57637440.

The previous prime is 171382087. The next prime is 171382093. The reversal of 171382090 is 90283171.

It is an interprime number because it is at equal distance from previous prime (171382087) and next prime (171382093).

It is not an unprimeable number, because it can be changed into a prime (171382093) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 88917 + ... + 90823.

It is an arithmetic number, because the mean of its divisors is an integer number (5666760).

Almost surely, 2^171382090 is an apocalyptic number.

171382090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171382090 is an abundant number, since it is smaller than the sum of its proper divisors (191290550).

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

171382090 is a wasteful number, since it uses less digits than its factorization.

171382090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 171382090 is about 13091.2982549478. The cubic root of 171382090 is about 555.4630121555.

The spelling of 171382090 in words is "one hundred seventy-one million, three hundred eighty-two thousand, ninety".