1295168789 has 2 divisors, whose sum is σ = 1295168790. Its totient is φ = 1295168788.

The previous prime is 1295168741. The next prime is 1295168807. The reversal of 1295168789 is 9878615921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053521764 + 241647025 = 32458^2 + 15545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295168789 - 2¹⁶ = 1295103253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295168489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647584394 + 647584395.

It is an arithmetic number, because the mean of its divisors is an integer number (647584395).

Almost surely, 2^1295168789 is an apocalyptic number.

It is an amenable number.

1295168789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295168789 is an equidigital number, since it uses as much as digits as its factorization.

1295168789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 56.

The square root of 1295168789 is about 35988.4535511044. The cubic root of 1295168789 is about 1090.0392177905.

The spelling of 1295168789 in words is "one billion, two hundred ninety-five million, one hundred sixty-eight thousand, seven hundred eighty-nine".