1297136 has 10 divisors (see below), whose sum is σ = 2513232. Its totient is φ = 648560.

The previous prime is 1297129. The next prime is 1297139. The reversal of 1297136 is 6317921.

It is a junction number, because it is equal to n+sod(n) for n = 1297099 and 1297108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297139) by changing a digit.

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 as a sum of consecutive naturals, namely, 40520 + ... + 40551.

2^1297136 is an apocalyptic number.

1297136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1297136 is a deficient number, since it is larger than the sum of its proper divisors (1216096).

1297136 is an equidigital number, since it uses as much as digits as its factorization.

1297136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81079 (or 81073 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 1297136 is about 1138.9187855155. The cubic root of 1297136 is about 109.0590819612.

The spelling of 1297136 in words is "one million, two hundred ninety-seven thousand, one hundred thirty-six".