249359147171 has 2 divisors, whose sum is σ = 249359147172. Its totient is φ = 249359147170.

The previous prime is 249359147137. The next prime is 249359147183. The reversal of 249359147171 is 171741953942.

249359147171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249359147171 is a prime.

It is not a weakly prime, because it can be changed into another prime (249359147101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124679573585 + 124679573586.

It is an arithmetic number, because the mean of its divisors is an integer number (124679573586).

Almost surely, 2^249359147171 is an apocalyptic number.

249359147171 is a deficient number, since it is larger than the sum of its proper divisors (1).

249359147171 is an equidigital number, since it uses as much as digits as its factorization.

249359147171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The spelling of 249359147171 in words is "two hundred forty-nine billion, three hundred fifty-nine million, one hundred forty-seven thousand, one hundred seventy-one".