11609189 has 2 divisors, whose sum is σ = 11609190. Its totient is φ = 11609188.

The previous prime is 11609137. The next prime is 11609201. The reversal of 11609189 is 98190611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 3441025 = 2858^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 11609189 - 2¹² = 11605093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11609119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5804594 + 5804595.

It is an arithmetic number, because the mean of its divisors is an integer number (5804595).

Almost surely, 2^11609189 is an apocalyptic number.

It is an amenable number.

11609189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11609189 is an equidigital number, since it uses as much as digits as its factorization.

11609189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 11609189 is about 3407.2259977876. The cubic root of 11609189 is about 226.4299968682.

The spelling of 11609189 in words is "eleven million, six hundred nine thousand, one hundred eighty-nine".