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121166 = 2471289
BaseRepresentation
bin11101100101001110
320011012122
4131211032
512334131
62332542
71013153
oct354516
9204178
10121166
1183041
125a152
13431c6
143222a
1525d7b
hex1d94e

121166 has 8 divisors (see below), whose sum is σ = 185760. Its totient is φ = 59248.

The previous prime is 121157. The next prime is 121169. The reversal of 121166 is 661121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121169) by changing a digit.

121166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (23220).

2121166 is an apocalyptic number.

121166 is a deficient number, since it is larger than the sum of its proper divisors (64594).

121166 is a wasteful number, since it uses less digits than its factorization.

121166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its digits is 72, while the sum is 17.

The square root of 121166 is about 348.0890690614. The cubic root of 121166 is about 49.4834825684.

Adding to 121166 its reverse (661121), we get a palindrome (782287).

The spelling of 121166 in words is "one hundred twenty-one thousand, one hundred sixty-six".

Divisors: 1 2 47 94 1289 2578 60583 121166