1297167885 has 64 divisors (see below), whose sum is σ = 2541369600. Its totient is φ = 623718144.

The previous prime is 1297167871. The next prime is 1297167887. The reversal of 1297167885 is 5887617921.

It is not a de Polignac number, because 1297167885 - 2⁵ = 1297167853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297167887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66871 + ... + 84059.

It is an arithmetic number, because the mean of its divisors is an integer number (39708900).

Almost surely, 2^1297167885 is an apocalyptic number.

1297167885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1297167885 is a deficient number, since it is larger than the sum of its proper divisors (1244201715).

1297167885 is a wasteful number, since it uses less digits than its factorization.

1297167885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17259 (or 17253 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 54.

The square root of 1297167885 is about 36016.2169723584. The cubic root of 1297167885 is about 1090.5997555042.

The spelling of 1297167885 in words is "one billion, two hundred ninety-seven million, one hundred sixty-seven thousand, eight hundred eighty-five".