122499 has 16 divisors (see below), whose sum is σ = 196000. Its totient is φ = 75168.

The previous prime is 122497. The next prime is 122501. The reversal of 122499 is 994221.

122499 = 91² + 92² + ... + 103².

It is a Cunningham number, because it is equal to 350²-1.

It is an interprime number because it is at equal distance from previous prime (122497) and next prime (122501).

It is not a de Polignac number, because 122499 - 2¹ = 122497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122497) 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, 177 + ... + 525.

It is an arithmetic number, because the mean of its divisors is an integer number (12250).

2¹²²⁴⁹⁹ is an apocalyptic number.

122499 is a deficient number, since it is larger than the sum of its proper divisors (73501).

122499 is a wasteful number, since it uses less digits than its factorization.

122499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 365 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 122499 is about 349.9985714257. The cubic root of 122499 is about 49.6642842773.

It can be divided in two parts, 1 and 22499, that added together give a square (22500 = 150²).

The spelling of 122499 in words is "one hundred twenty-two thousand, four hundred ninety-nine".