122699 has 4 divisors (see below), whose sum is σ = 126960. Its totient is φ = 118440.

The previous prime is 122693. The next prime is 122701. The reversal of 122699 is 996221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996221 = 461 ⋅2161.

It is a cyclic number.

It is not a de Polignac number, because 122699 - 2⁸ = 122443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4231 = 122699 / (1 + 2 + 2 + 6 + 9 + 9).

It is an Ulam number.

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 (122693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2087 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (31740).

2¹²²⁶⁹⁹ is an apocalyptic number.

122699 is a deficient number, since it is larger than the sum of its proper divisors (4261).

122699 is an equidigital number, since it uses as much as digits as its factorization.

122699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260.

The product of its digits is 1944, while the sum is 29.

The square root of 122699 is about 350.2841703532. The cubic root of 122699 is about 49.6912979838.

The spelling of 122699 in words is "one hundred twenty-two thousand, six hundred ninety-nine".