11609501 has 2 divisors, whose sum is σ = 11609502. Its totient is φ = 11609500.

The previous prime is 11609497. The next prime is 11609537. The reversal of 11609501 is 10590611.

11609501 is digitally balanced in base 2, because in such base 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., 11383876 + 225625 = 3374^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 11609501 - 2² = 11609497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11609201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5804750 + 5804751.

It is an arithmetic number, because the mean of its divisors is an integer number (5804751).

Almost surely, 2^11609501 is an apocalyptic number.

It is an amenable number.

11609501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11609501 is an equidigital number, since it uses as much as digits as its factorization.

11609501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 11609501 is about 3407.2717825263. The cubic root of 11609501 is about 226.4320253052.

The spelling of 11609501 in words is "eleven million, six hundred nine thousand, five hundred one".