121415 has 8 divisors (see below), whose sum is σ = 166560. Its totient is φ = 83232.

The previous prime is 121403. The next prime is 121421. The reversal of 121415 is 514121.

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

It is a cyclic number.

It is not a de Polignac number, because 121415 - 2⁶ = 121351 is a prime.

It is a tribonacci number.

It is a self number, because there is not a number n which added to its sum of digits gives 121415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 1769.

It is an arithmetic number, because the mean of its divisors is an integer number (20820).

2¹²¹⁴¹⁵ is an apocalyptic number.

121415 is a deficient number, since it is larger than the sum of its proper divisors (45145).

121415 is an equidigital number, since it uses as much as digits as its factorization.

121415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481.

The product of its digits is 40, while the sum is 14.

The square root of 121415 is about 348.4465525730. The cubic root of 121415 is about 49.5173560877.

Adding to 121415 its reverse (514121), we get a palindrome (635536).

The spelling of 121415 in words is "one hundred twenty-one thousand, four hundred fifteen".