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1325431 is a prime number
BaseRepresentation
bin101000011100101110111
32111100011001
411003211313
5314403211
644224131
714160142
oct5034567
92440131
101325431
118258a8
1253b047
133753a3
14267059
151b2ac1
hex143977

1325431 has 2 divisors, whose sum is σ = 1325432. Its totient is φ = 1325430.

The previous prime is 1325419. The next prime is 1325449. The reversal of 1325431 is 1345231.

It is a weak prime.

It is an emirp because it is prime and its reverse (1345231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1325431 - 25 = 1325399 is a prime.

It is a super-2 number, since 2×13254312 = 3513534671522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325399 and 1325408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662715 + 662716.

It is an arithmetic number, because the mean of its divisors is an integer number (662716).

21325431 is an apocalyptic number.

1325431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325431 is an equidigital number, since it uses as much as digits as its factorization.

1325431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 1325431 is about 1151.2736425368. The cubic root of 1325431 is about 109.8463695554.

The spelling of 1325431 in words is "one million, three hundred twenty-five thousand, four hundred thirty-one".