122429 has 4 divisors (see below), whose sum is σ = 127776. Its totient is φ = 117084.

The previous prime is 122401. The next prime is 122443. The reversal of 122429 is 924221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 924221 = 79 ⋅11699.

It is a cyclic number.

It is not a de Polignac number, because 122429 - 2⁸ = 122173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122449) 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, 2639 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (31944).

2¹²²⁴²⁹ is an apocalyptic number.

It is an amenable number.

122429 is a deficient number, since it is larger than the sum of its proper divisors (5347).

122429 is an equidigital number, since it uses as much as digits as its factorization.

122429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346.

The product of its digits is 288, while the sum is 20.

The square root of 122429 is about 349.8985567275. The cubic root of 122429 is about 49.6548225339.

The spelling of 122429 in words is "one hundred twenty-two thousand, four hundred twenty-nine".