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1609061 is a prime number
BaseRepresentation
bin110001000110101100101
310000202012212
412020311211
5402442221
654253205
716451066
oct6106545
93022185
101609061
119a9a03
12657205
1344450c
142dc56d
1521bb5b
hex188d65

1609061 has 2 divisors, whose sum is σ = 1609062. Its totient is φ = 1609060.

The previous prime is 1609043. The next prime is 1609063.

1609061 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1600225 + 8836 = 1265^2 + 94^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1609061 - 210 = 1608037 is a prime.

It is a Sophie Germain prime.

Together with 1609063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p121784 and since 1609061 and 121784 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1609063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804530 + 804531.

It is an arithmetic number, because the mean of its divisors is an integer number (804531).

21609061 is an apocalyptic number.

It is an amenable number.

1609061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1609061 is an equidigital number, since it uses as much as digits as its factorization.

1609061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1609061 is about 1268.4876822421. The cubic root of 1609061 is about 117.1810817581.

The spelling of 1609061 in words is "one million, six hundred nine thousand, sixty-one".