1345139 has 2 divisors, whose sum is σ = 1345140. Its totient is φ = 1345138.
The previous prime is 1345129. The next prime is 1345153. The reversal of 1345139 is 9315431.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1345139 - 220 = 296563 is a prime.
It is not a weakly prime, because it can be changed into another prime (1345129) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672569 + 672570.
It is an arithmetic number, because the mean of its divisors is an integer number (672570).
21345139 is an apocalyptic number.
1345139 is a deficient number, since it is larger than the sum of its proper divisors (1).
1345139 is an equidigital number, since it uses as much as digits as its factorization.
1345139 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1620, while the sum is 26.
The square root of 1345139 is about 1159.8012760814. The cubic root of 1345139 is about 110.3881330012.
The spelling of 1345139 in words is "one million, three hundred forty-five thousand, one hundred thirty-nine".
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