124402099 has 4 divisors (see below), whose sum is σ = 124575840. Its totient is φ = 124228360.

The previous prime is 124402093. The next prime is 124402121. The reversal of 124402099 is 990204421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990204421 = 97 ⋅10208293.

It is a cyclic number.

It is not a de Polignac number, because 124402099 - 2⁵ = 124402067 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124402099.

It is not an unprimeable number, because it can be changed into a prime (124402093) 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, 85792 + ... + 87229.

It is an arithmetic number, because the mean of its divisors is an integer number (31143960).

Almost surely, 2^124402099 is an apocalyptic number.

124402099 is a deficient number, since it is larger than the sum of its proper divisors (173741).

124402099 is an equidigital number, since it uses as much as digits as its factorization.

124402099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173740.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 124402099 is about 11153.5688907183. The cubic root of 124402099 is about 499.2015242183.

The spelling of 124402099 in words is "one hundred twenty-four million, four hundred two thousand, ninety-nine".