171442130 has 32 divisors (see below), whose sum is σ = 326194560. Its totient is φ = 64696320.

The previous prime is 171442123. The next prime is 171442133. The reversal of 171442130 is 31244171.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 171442096 and 171442105.

It is not an unprimeable number, because it can be changed into a prime (171442133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47075 + ... + 50585.

It is an arithmetic number, because the mean of its divisors is an integer number (10193580).

Almost surely, 2^171442130 is an apocalyptic number.

171442130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171442130 is a deficient number, since it is larger than the sum of its proper divisors (154752430).

171442130 is a wasteful number, since it uses less digits than its factorization.

171442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 171442130 is about 13093.5911804211. The cubic root of 171442130 is about 555.5278693907.

The spelling of 171442130 in words is "one hundred seventy-one million, four hundred forty-two thousand, one hundred thirty".