121706171 has 8 divisors (see below), whose sum is σ = 124545600. Its totient is φ = 118877248.

The previous prime is 121706161. The next prime is 121706173. The reversal of 121706171 is 171607121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121706171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121706171.

It is not an unprimeable number, because it can be changed into a prime (121706173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23855 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (15568200).

Almost surely, 2^121706171 is an apocalyptic number.

121706171 is a deficient number, since it is larger than the sum of its proper divisors (2839429).

121706171 is an equidigital number, since it uses as much as digits as its factorization.

121706171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253.

The product of its (nonzero) digits is 588, while the sum is 26.

The square root of 121706171 is about 11032.0519850117. The cubic root of 121706171 is about 495.5690778479.

The spelling of 121706171 in words is "one hundred twenty-one million, seven hundred six thousand, one hundred seventy-one".