1389249167 has 2 divisors, whose sum is σ = 1389249168. Its totient is φ = 1389249166.

The previous prime is 1389249157. The next prime is 1389249181. The reversal of 1389249167 is 7619429831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389249167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389249157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694624583 + 694624584.

It is an arithmetic number, because the mean of its divisors is an integer number (694624584).

Almost surely, 2^1389249167 is an apocalyptic number.

1389249167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389249167 is an equidigital number, since it uses as much as digits as its factorization.

1389249167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 50.

The square root of 1389249167 is about 37272.6329496589. The cubic root of 1389249167 is about 1115.8180479453.

The spelling of 1389249167 in words is "one billion, three hundred eighty-nine million, two hundred forty-nine thousand, one hundred sixty-seven".