121479 has 4 divisors (see below), whose sum is σ = 161976. Its totient is φ = 80984.

The previous prime is 121469. The next prime is 121487. The reversal of 121479 is 974121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974121 = 3 ⋅324707.

It is a cyclic number.

It is not a de Polignac number, because 121479 - 2⁵ = 121447 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121479.

It is not an unprimeable number, because it can be changed into a prime (121439) 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, 20244 + ... + 20249.

It is an arithmetic number, because the mean of its divisors is an integer number (40494).

2¹²¹⁴⁷⁹ is an apocalyptic number.

121479 is a deficient number, since it is larger than the sum of its proper divisors (40497).

121479 is an equidigital number, since it uses as much as digits as its factorization.

121479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40496.

The product of its digits is 504, while the sum is 24.

The square root of 121479 is about 348.5383766531. The cubic root of 121479 is about 49.5260550516.

The spelling of 121479 in words is "one hundred twenty-one thousand, four hundred seventy-nine".