1248779167 has 2 divisors, whose sum is σ = 1248779168. Its totient is φ = 1248779166.

The previous prime is 1248779153. The next prime is 1248779171. The reversal of 1248779167 is 7619778421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1248779167 - 2¹¹ = 1248777119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248779117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624389583 + 624389584.

It is an arithmetic number, because the mean of its divisors is an integer number (624389584).

Almost surely, 2^1248779167 is an apocalyptic number.

1248779167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248779167 is an equidigital number, since it uses as much as digits as its factorization.

1248779167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 52.

The square root of 1248779167 is about 35338.0696558259. The cubic root of 1248779167 is about 1076.8665367881.

The spelling of 1248779167 in words is "one billion, two hundred forty-eight million, seven hundred seventy-nine thousand, one hundred sixty-seven".