11455009 has 2 divisors, whose sum is σ = 11455010. Its totient is φ = 11455008.

The previous prime is 11454997. The next prime is 11455013. The reversal of 11455009 is 90055411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8427409 + 3027600 = 2903^2 + 1740^2 .

It is a cyclic number.

It is not a de Polignac number, because 11455009 - 2⁵ = 11454977 is a prime.

It is not a weakly prime, because it can be changed into another prime (11455109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5727504 + 5727505.

It is an arithmetic number, because the mean of its divisors is an integer number (5727505).

Almost surely, 2^11455009 is an apocalyptic number.

It is an amenable number.

11455009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11455009 is an equidigital number, since it uses as much as digits as its factorization.

11455009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 11455009 is about 3384.5249297353. The cubic root of 11455009 is about 225.4231313393.

The spelling of 11455009 in words is "eleven million, four hundred fifty-five thousand, nine".