124242401 has 4 divisors (see below), whose sum is σ = 124264704. Its totient is φ = 124220100.

The previous prime is 124242397. The next prime is 124242407. The reversal of 124242401 is 104242421.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 124242401 - 2² = 124242397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124242407) 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, 5096 + ... + 16566.

It is an arithmetic number, because the mean of its divisors is an integer number (31066176).

Almost surely, 2^124242401 is an apocalyptic number.

It is an amenable number.

124242401 is a deficient number, since it is larger than the sum of its proper divisors (22303).

124242401 is a wasteful number, since it uses less digits than its factorization.

124242401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22302.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 124242401 is about 11146.4075378572. The cubic root of 124242401 is about 498.9878203674.

Adding to 124242401 its sum of digits (20), we get a palindrome (124242421).

Adding to 124242401 its reverse (104242421), we get a palindrome (228484822).

The spelling of 124242401 in words is "one hundred twenty-four million, two hundred forty-two thousand, four hundred one".