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11458609 is a prime number
BaseRepresentation
bin101011101101…
…100000110001
3210120011020221
4223231200301
510413133414
61045333041
7166253011
oct53554061
923504227
1011458609
116517028
123a07181
1324b2756
141743c41
151015224
hexaed831

11458609 has 2 divisors, whose sum is σ = 11458610. Its totient is φ = 11458608.

The previous prime is 11458607. The next prime is 11458613. The reversal of 11458609 is 90685411.

11458609 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5832225 + 5626384 = 2415^2 + 2372^2 .

It is an emirp because it is prime and its reverse (90685411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11458609 - 21 = 11458607 is a prime.

Together with 11458607, it forms a pair of twin primes.

It is equal to p754738 and since 11458609 and 754738 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11458607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5729304 + 5729305.

It is an arithmetic number, because the mean of its divisors is an integer number (5729305).

Almost surely, 211458609 is an apocalyptic number.

It is an amenable number.

11458609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11458609 is an equidigital number, since it uses as much as digits as its factorization.

11458609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 11458609 is about 3385.0567203520. The cubic root of 11458609 is about 225.4467436669.

The spelling of 11458609 in words is "eleven million, four hundred fifty-eight thousand, six hundred nine".