121193 has 4 divisors (see below), whose sum is σ = 128340. Its totient is φ = 114048.

The previous prime is 121189. The next prime is 121229. The reversal of 121193 is 391121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391121 = 227 ⋅1723.

It can be written as a sum of positive squares in 2 ways, for example, as 85849 + 35344 = 293^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 121193 - 2² = 121189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7129 = 121193 / (1 + 2 + 1 + 1 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548 + ... + 3581.

It is an arithmetic number, because the mean of its divisors is an integer number (32085).

2¹²¹¹⁹³ is an apocalyptic number.

It is an amenable number.

121193 is a deficient number, since it is larger than the sum of its proper divisors (7147).

121193 is an equidigital number, since it uses as much as digits as its factorization.

121193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146.

The product of its digits is 54, while the sum is 17.

The square root of 121193 is about 348.1278500781. The cubic root of 121193 is about 49.4871578426.

The spelling of 121193 in words is "one hundred twenty-one thousand, one hundred ninety-three".