122415 has 8 divisors (see below), whose sum is σ = 195888. Its totient is φ = 65280.

The previous prime is 122401. The next prime is 122443. The reversal of 122415 is 514221.

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

It is not a de Polignac number, because 122415 - 2⁴ = 122399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 8161 = 122415 / (1 + 2 + 2 + 4 + 1 + 5).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 122394 and 122403.

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, 4066 + ... + 4095.

It is an arithmetic number, because the mean of its divisors is an integer number (24486).

2¹²²⁴¹⁵ is an apocalyptic number.

122415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122415 is a deficient number, since it is larger than the sum of its proper divisors (73473).

122415 is an equidigital number, since it uses as much as digits as its factorization.

122415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169.

The product of its digits is 80, while the sum is 15.

The square root of 122415 is about 349.8785503571. The cubic root of 122415 is about 49.6529297525.

Adding to 122415 its reverse (514221), we get a palindrome (636636).

It can be divided in two parts, 12241 and 5, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 122415 in words is "one hundred twenty-two thousand, four hundred fifteen".