124707421 has 4 divisors (see below), whose sum is σ = 124758144. Its totient is φ = 124656700.

The previous prime is 124707419. The next prime is 124707491.

124707421 is nontrivially palindromic in base 10.

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 124707421 - 2¹ = 124707419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124707421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124707491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21475 + ... + 26656.

It is an arithmetic number, because the mean of its divisors is an integer number (31189536).

Almost surely, 2^124707421 is an apocalyptic number.

It is an amenable number.

124707421 is a deficient number, since it is larger than the sum of its proper divisors (50723).

124707421 is an equidigital number, since it uses as much as digits as its factorization.

124707421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50722.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 124707421 is about 11167.2476913517. The cubic root of 124707421 is about 499.6095899059.

It can be divided in two parts, 12470 and 7421, that added together give a palindrome (19891).

The spelling of 124707421 in words is "one hundred twenty-four million, seven hundred seven thousand, four hundred twenty-one".