171939054 has 32 divisors (see below), whose sum is σ = 416123136. Its totient is φ = 46235520.

The previous prime is 171939043. The next prime is 171939059. The reversal of 171939054 is 450939171.

It is a happy number.

171939054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171939059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119692 + ... + 121119.

It is an arithmetic number, because the mean of its divisors is an integer number (13003848).

Almost surely, 2^171939054 is an apocalyptic number.

171939054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

171939054 is an abundant number, since it is smaller than the sum of its proper divisors (244184082).

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

171939054 is a wasteful number, since it uses less digits than its factorization.

171939054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240840.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 171939054 is about 13112.5532982711. The cubic root of 171939054 is about 556.0640830679.

The spelling of 171939054 in words is "one hundred seventy-one million, nine hundred thirty-nine thousand, fifty-four".