248611421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 an emirpimes, since its reverse is a distinct semiprime: 124116842 = 2 ⋅62058421.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-248611421 is a prime.
It is a Duffinian number.
It is a congruent number.
Almost surely, 2248611421 is an apocalyptic number.
It is an amenable number.
248611421 is an equidigital number, since it uses as much as digits as its factorization.
248611421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 275010.
The square root of 248611421 is about 15767.4164338994. The cubic root of 248611421 is about 628.7920255905.
The spelling of 248611421 in words is "two hundred forty-eight million, six hundred eleven thousand, four hundred twenty-one".