124320409 has 8 divisors (see below), whose sum is σ = 125412768. Its totient is φ = 123233280.

The previous prime is 124320397. The next prime is 124320433. The reversal of 124320409 is 904023421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124320409 - 2⁵ = 124320377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124320809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57274 + ... + 59404.

It is an arithmetic number, because the mean of its divisors is an integer number (15676596).

Almost surely, 2^124320409 is an apocalyptic number.

It is an amenable number.

124320409 is a deficient number, since it is larger than the sum of its proper divisors (1092359).

124320409 is a wasteful number, since it uses less digits than its factorization.

124320409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 124320409 is about 11149.9062327896. The cubic root of 124320409 is about 499.0922315770.

The spelling of 124320409 in words is "one hundred twenty-four million, three hundred twenty thousand, four hundred nine".