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1295389 is a prime number
BaseRepresentation
bin100111100010000011101
32102210221101
410330100131
5312423024
643433101
714003434
oct4742035
92383841
101295389
11805277
12525791
13364804
1425a11b
151a8c44
hex13c41d

1295389 has 2 divisors, whose sum is σ = 1295390. Its totient is φ = 1295388.

The previous prime is 1295387. The next prime is 1295447. The reversal of 1295389 is 9835921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1172889 + 122500 = 1083^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295389 - 21 = 1295387 is a prime.

It is a super-2 number, since 2×12953892 = 3356065322642, which contains 22 as substring.

Together with 1295387, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647694 + 647695.

It is an arithmetic number, because the mean of its divisors is an integer number (647695).

21295389 is an apocalyptic number.

It is an amenable number.

1295389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295389 is an equidigital number, since it uses as much as digits as its factorization.

1295389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 37.

The square root of 1295389 is about 1138.1515716283. The cubic root of 1295389 is about 109.0100992242.

The spelling of 1295389 in words is "one million, two hundred ninety-five thousand, three hundred eighty-nine".