4248415421 has 2 divisors, whose sum is σ = 4248415422. Its totient is φ = 4248415420.

The previous prime is 4248415417. The next prime is 4248415463. The reversal of 4248415421 is 1245148424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4027298521 + 221116900 = 63461^2 + 14870^2 .

It is a cyclic number.

It is not a de Polignac number, because 4248415421 - 2² = 4248415417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4248415471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2124207710 + 2124207711.

It is an arithmetic number, because the mean of its divisors is an integer number (2124207711).

Almost surely, 2^4248415421 is an apocalyptic number.

It is an amenable number.

4248415421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4248415421 is an equidigital number, since it uses as much as digits as its factorization.

4248415421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40960, while the sum is 35.

The square root of 4248415421 is about 65179.8697528616. The cubic root of 4248415421 is about 1619.6045649938.

The spelling of 4248415421 in words is "four billion, two hundred forty-eight million, four hundred fifteen thousand, four hundred twenty-one".