1297681330 has 32 divisors (see below), whose sum is σ = 2573425728. Its totient is φ = 467208000.

The previous prime is 1297681291. The next prime is 1297681373. The reversal of 1297681330 is 331867921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47292 + ... + 69511.

It is an arithmetic number, because the mean of its divisors is an integer number (80419554).

Almost surely, 2^1297681330 is an apocalyptic number.

1297681330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297681330 is a deficient number, since it is larger than the sum of its proper divisors (1275744398).

1297681330 is a wasteful number, since it uses less digits than its factorization.

1297681330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116922.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1297681330 is about 36023.3442367585. The cubic root of 1297681330 is about 1090.7436302569.

The spelling of 1297681330 in words is "one billion, two hundred ninety-seven million, six hundred eighty-one thousand, three hundred thirty".