124404131 has 4 divisors (see below), whose sum is σ = 125196672. Its totient is φ = 123611592.

The previous prime is 124404107. The next prime is 124404139. The reversal of 124404131 is 131404421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124404131 - 2¹⁰ = 124403107 is a prime.

It is a super-2 number, since 2×124404131² = 30952775619730322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124404139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396035 + ... + 396348.

It is an arithmetic number, because the mean of its divisors is an integer number (31299168).

Almost surely, 2^124404131 is an apocalyptic number.

124404131 is a deficient number, since it is larger than the sum of its proper divisors (792541).

124404131 is an equidigital number, since it uses as much as digits as its factorization.

124404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792540.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 124404131 is about 11153.6599822659. The cubic root of 124404131 is about 499.2042422109.

Adding to 124404131 its reverse (131404421), we get a palindrome (255808552).

The spelling of 124404131 in words is "one hundred twenty-four million, four hundred four thousand, one hundred thirty-one".