1297868544 has 108 divisors (see below), whose sum is σ = 4276710256. Its totient is φ = 370814976.

The previous prime is 1297868503. The next prime is 1297868557. The reversal of 1297868544 is 4458687921.

It is a happy number.

1297868544 is a `hidden beast` number, since 1 + 2 + 97 + 8 + 6 + 8 + 544 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24109 + ... + 56364.

Almost surely, 2^1297868544 is an apocalyptic number.

1297868544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1297868544 is an abundant number, since it is smaller than the sum of its proper divisors (2978841712).

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

1297868544 is an equidigital number, since it uses as much as digits as its factorization.

1297868544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80502 (or 80485 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 1297868544 is about 36025.9426524831. The cubic root of 1297868544 is about 1090.7960808995.

The spelling of 1297868544 in words is "one billion, two hundred ninety-seven million, eight hundred sixty-eight thousand, five hundred forty-four".