124421001 has 4 divisors (see below), whose sum is σ = 165894672. Its totient is φ = 82947332.

The previous prime is 124420999. The next prime is 124421057. The reversal of 124421001 is 100124421.

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.

It is a cyclic number.

It is not a de Polignac number, because 124421001 - 2¹ = 124420999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124401001) 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, 20736831 + ... + 20736836.

It is an arithmetic number, because the mean of its divisors is an integer number (41473668).

Almost surely, 2^124421001 is an apocalyptic number.

It is an amenable number.

124421001 is a deficient number, since it is larger than the sum of its proper divisors (41473671).

124421001 is an equidigital number, since it uses as much as digits as its factorization.

124421001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41473670.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 124421001 is about 11154.4162106316. The cubic root of 124421001 is about 499.2268062926.

Adding to 124421001 its reverse (100124421), we get a palindrome (224545422).

The spelling of 124421001 in words is "one hundred twenty-four million, four hundred twenty-one thousand, one".