124626421 has 2 divisors, whose sum is σ = 124626422. Its totient is φ = 124626420.

The previous prime is 124626407. The next prime is 124626451.

124626421 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109307025 + 15319396 = 10455^2 + 3914^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 124626421 - 2⁹ = 124625909 is a prime.

It is a super-2 number, since 2×124626421² = 31063489622538482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124626421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124626451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62313210 + 62313211.

It is an arithmetic number, because the mean of its divisors is an integer number (62313211).

Almost surely, 2^124626421 is an apocalyptic number.

It is an amenable number.

124626421 is a deficient number, since it is larger than the sum of its proper divisors (1).

124626421 is an equidigital number, since it uses as much as digits as its factorization.

124626421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 124626421 is about 11163.6204252921. The cubic root of 124626421 is about 499.5013976233.

The spelling of 124626421 in words is "one hundred twenty-four million, six hundred twenty-six thousand, four hundred twenty-one".