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12575839 is a prime number
BaseRepresentation
bin101111111110…
…010001011111
3212122220210211
4233332101133
511204411324
61125313251
7211615153
oct57762137
925586724
1012575839
11710a461
124265827
1327b4133
141955063
151186294
hexbfe45f

12575839 has 2 divisors, whose sum is σ = 12575840. Its totient is φ = 12575838.

The previous prime is 12575831. The next prime is 12575851. The reversal of 12575839 is 93857521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12575839 - 23 = 12575831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12575831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287919 + 6287920.

It is an arithmetic number, because the mean of its divisors is an integer number (6287920).

Almost surely, 212575839 is an apocalyptic number.

12575839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575839 is an equidigital number, since it uses as much as digits as its factorization.

12575839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The square root of 12575839 is about 3546.2429414805. The cubic root of 12575839 is about 232.5478469377.

The spelling of 12575839 in words is "twelve million, five hundred seventy-five thousand, eight hundred thirty-nine".