1297091460 has 96 divisors (see below), whose sum is σ = 4284628992. Its totient is φ = 286911360.

The previous prime is 1297091443. The next prime is 1297091473. The reversal of 1297091460 is 641907921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36792 + ... + 62831.

It is an arithmetic number, because the mean of its divisors is an integer number (44631552).

Almost surely, 2^1297091460 is an apocalyptic number.

1297091460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1297091460 is an abundant number, since it is smaller than the sum of its proper divisors (2987537532).

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

1297091460 is a wasteful number, since it uses less digits than its factorization.

1297091460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99673 (or 99671 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1297091460 is about 36015.1559763386. The cubic root of 1297091460 is about 1090.5783368623.

The spelling of 1297091460 in words is "one billion, two hundred ninety-seven million, ninety-one thousand, four hundred sixty".