174121 has 2 divisors, whose sum is σ = 174122. Its totient is φ = 174120.

The previous prime is 174101. The next prime is 174137. The reversal of 174121 is 121471.

It is an a-pointer prime, because the next prime (174137) can be obtained adding 174121 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 44521 = 360^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 174121 - 2⁷ = 173993 is a prime.

174121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 174095 and 174104.

It is not a weakly prime, because it can be changed into another prime (174101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87060 + 87061.

It is an arithmetic number, because the mean of its divisors is an integer number (87061).

2¹⁷⁴¹²¹ is an apocalyptic number.

It is an amenable number.

174121 is a deficient number, since it is larger than the sum of its proper divisors (1).

174121 is an equidigital number, since it uses as much as digits as its factorization.

174121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56, while the sum is 16.

The square root of 174121 is about 417.2780847349. The cubic root of 174121 is about 55.8406396221.

Adding to 174121 its reverse (121471), we get a palindrome (295592).

Subtracting from 174121 its reverse (121471), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 174121 in words is "one hundred seventy-four thousand, one hundred twenty-one", and thus it is an iban number.