1297264 has 20 divisors (see below), whose sum is σ = 2544480. Its totient is φ = 640640.
The previous prime is 1297249. The next prime is 1297271. The reversal of 1297264 is 4627921.
Its product of digits (6048) is a multiple of the sum of its prime factors (1008).
It is a congruent number.
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 3 ways as a sum of consecutive naturals, for example, 969 + ... + 1879.
It is an arithmetic number, because the mean of its divisors is an integer number (127224).
21297264 is an apocalyptic number.
It is an amenable number.
1297264 is a deficient number, since it is larger than the sum of its proper divisors (1247216).
1297264 is an equidigital number, since it uses as much as digits as its factorization.
1297264 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1008 (or 1002 counting only the distinct ones).
The product of its digits is 6048, while the sum is 31.
The square root of 1297264 is about 1138.9749777761. The cubic root of 1297264 is about 109.0626691212.
The spelling of 1297264 in words is "one million, two hundred ninety-seven thousand, two hundred sixty-four".
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