124229109 has 4 divisors (see below), whose sum is σ = 165638816. Its totient is φ = 82819404.

The previous prime is 124229099. The next prime is 124229143. The reversal of 124229109 is 901922421.

It is a happy number.

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: 901922421 = 3 ⋅300640807.

It is not a de Polignac number, because 124229109 - 2¹⁶ = 124163573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124229179) 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, 20704849 + ... + 20704854.

It is an arithmetic number, because the mean of its divisors is an integer number (41409704).

Almost surely, 2^124229109 is an apocalyptic number.

It is an amenable number.

124229109 is a deficient number, since it is larger than the sum of its proper divisors (41409707).

124229109 is an equidigital number, since it uses as much as digits as its factorization.

124229109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41409706.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 124229109 is about 11145.8112759906. The cubic root of 124229109 is about 498.9700250936.

The spelling of 124229109 in words is "one hundred twenty-four million, two hundred twenty-nine thousand, one hundred nine".