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1542089 is a prime number
BaseRepresentation
bin101111000011111001001
32220100100102
411320133021
5343321324
653015145
716051613
oct5703711
92810312
101542089
1196365a
126244b5
1341cba3
142c1db3
15206dae
hex1787c9

1542089 has 2 divisors, whose sum is σ = 1542090. Its totient is φ = 1542088.

The previous prime is 1542077. The next prime is 1542091. The reversal of 1542089 is 9802451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1537600 + 4489 = 1240^2 + 67^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1542089 is a prime.

Together with 1542091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1542029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771044 + 771045.

It is an arithmetic number, because the mean of its divisors is an integer number (771045).

21542089 is an apocalyptic number.

It is an amenable number.

1542089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542089 is an equidigital number, since it uses as much as digits as its factorization.

1542089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1542089 is about 1241.8087614444. The cubic root of 1542089 is about 115.5322274093.

The spelling of 1542089 in words is "one million, five hundred forty-two thousand, eighty-nine".