121713 has 8 divisors (see below), whose sum is σ = 168000. Its totient is φ = 78288.

The previous prime is 121711. The next prime is 121721. The reversal of 121713 is 317121.

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

It is not a de Polignac number, because 121713 - 2¹ = 121711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121692 and 121701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613 + ... + 786.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2¹²¹⁷¹³ is an apocalyptic number.

It is an amenable number.

121713 is a deficient number, since it is larger than the sum of its proper divisors (46287).

121713 is a wasteful number, since it uses less digits than its factorization.

121713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431.

The product of its digits is 42, while the sum is 15.

The square root of 121713 is about 348.8739027213. The cubic root of 121713 is about 49.5578346559.

Adding to 121713 its reverse (317121), we get a palindrome (438834).

The spelling of 121713 in words is "one hundred twenty-one thousand, seven hundred thirteen".