248129863 has 2 divisors, whose sum is σ = 248129864. Its totient is φ = 248129862.

The previous prime is 248129857. The next prime is 248129891. The reversal of 248129863 is 368921842.

248129863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248129863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248129813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124064931 + 124064932.

It is an arithmetic number, because the mean of its divisors is an integer number (124064932).

Almost surely, 2^248129863 is an apocalyptic number.

248129863 is a deficient number, since it is larger than the sum of its proper divisors (1).

248129863 is an equidigital number, since it uses as much as digits as its factorization.

248129863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 248129863 is about 15752.1383627748. The cubic root of 248129863 is about 628.3857750831.

The spelling of 248129863 in words is "two hundred forty-eight million, one hundred twenty-nine thousand, eight hundred sixty-three".