1297983160 has 32 divisors (see below), whose sum is σ = 3021170400. Its totient is φ = 501289600.

The previous prime is 1297983149. The next prime is 1297983187. The reversal of 1297983160 is 613897921.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1297983160.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558316 + ... + 560635.

It is an arithmetic number, because the mean of its divisors is an integer number (94411575).

Almost surely, 2^1297983160 is an apocalyptic number.

1297983160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1297983160 is an abundant number, since it is smaller than the sum of its proper divisors (1723187240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297983160 is a wasteful number, since it uses less digits than its factorization.

1297983160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118991 (or 1118987 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 1297983160 is about 36027.5333599179. The cubic root of 1297983160 is about 1090.8281896992.

The spelling of 1297983160 in words is "one billion, two hundred ninety-seven million, nine hundred eighty-three thousand, one hundred sixty".