1356143 has 2 divisors, whose sum is σ = 1356144. Its totient is φ = 1356142.
The previous prime is 1356133. The next prime is 1356151. The reversal of 1356143 is 3416531.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1356143 - 26 = 1356079 is a prime.
It is a Sophie Germain prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1356133) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678071 + 678072.
It is an arithmetic number, because the mean of its divisors is an integer number (678072).
21356143 is an apocalyptic number.
1356143 is a deficient number, since it is larger than the sum of its proper divisors (1).
1356143 is an equidigital number, since it uses as much as digits as its factorization.
1356143 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1080, while the sum is 23.
The square root of 1356143 is about 1164.5355297285. The cubic root of 1356143 is about 110.6883284075.
The spelling of 1356143 in words is "one million, three hundred fifty-six thousand, one hundred forty-three".
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