171125722443 has 16 divisors (see below), whose sum is σ = 248104613120. Its totient is φ = 104285725344.

The previous prime is 171125722381. The next prime is 171125722447. The reversal of 171125722443 is 344227521171.

It is not a de Polignac number, because 171125722443 - 2⁹ = 171125721931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (171125722447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21296173 + ... + 21304206.

It is an arithmetic number, because the mean of its divisors is an integer number (15506538320).

Almost surely, 2^171125722443 is an apocalyptic number.

171125722443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

171125722443 is a deficient number, since it is larger than the sum of its proper divisors (76978890677).

171125722443 is a wasteful number, since it uses less digits than its factorization.

171125722443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42600498.

The product of its digits is 94080, while the sum is 39.

The spelling of 171125722443 in words is "one hundred seventy-one billion, one hundred twenty-five million, seven hundred twenty-two thousand, four hundred forty-three".