121693 has 16 divisors (see below), whose sum is σ = 153216. Its totient is φ = 95040.

The previous prime is 121687. The next prime is 121697. The reversal of 121693 is 396121.

It is not a de Polignac number, because 121693 - 2⁵ = 121661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3271 + ... + 3307.

It is an arithmetic number, because the mean of its divisors is an integer number (9576).

2¹²¹⁶⁹³ is an apocalyptic number.

121693 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121693 is a deficient number, since it is larger than the sum of its proper divisors (31523).

121693 is a wasteful number, since it uses less digits than its factorization.

121693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84.

The product of its digits is 324, while the sum is 22.

The square root of 121693 is about 348.8452378921. The cubic root of 121693 is about 49.5551200431. Note that the first 3 decimals are identical.

The spelling of 121693 in words is "one hundred twenty-one thousand, six hundred ninety-three".