171982041 has 16 divisors (see below), whose sum is σ = 285892608. Its totient is φ = 89341200.

The previous prime is 171982033. The next prime is 171982049. The reversal of 171982041 is 140289171.

It is an interprime number because it is at equal distance from previous prime (171982033) and next prime (171982049).

It is not a de Polignac number, because 171982041 - 2³ = 171982033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 171981993 and 171982011.

It is not an unprimeable number, because it can be changed into a prime (171982049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372025 + ... + 372486.

It is an arithmetic number, because the mean of its divisors is an integer number (17868288).

Almost surely, 2^171982041 is an apocalyptic number.

171982041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

171982041 is a deficient number, since it is larger than the sum of its proper divisors (113910567).

171982041 is a wasteful number, since it uses less digits than its factorization.

171982041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744532.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 171982041 is about 13114.1923502746. The cubic root of 171982041 is about 556.1104202911.

The spelling of 171982041 in words is "one hundred seventy-one million, nine hundred eighty-two thousand, forty-one".