169226089 has 2 divisors, whose sum is σ = 169226090. Its totient is φ = 169226088.

The previous prime is 169226087. The next prime is 169226149. The reversal of 169226089 is 980622961.

169226089 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., 122877225 + 46348864 = 11085^2 + 6808^2 .

It is a cyclic number.

It is not a de Polignac number, because 169226089 - 2¹ = 169226087 is a prime.

Together with 169226087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (169226087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84613044 + 84613045.

It is an arithmetic number, because the mean of its divisors is an integer number (84613045).

Almost surely, 2^169226089 is an apocalyptic number.

It is an amenable number.

169226089 is a deficient number, since it is larger than the sum of its proper divisors (1).

169226089 is an equidigital number, since it uses as much as digits as its factorization.

169226089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 169226089 is about 13008.6928244155. The cubic root of 169226089 is about 553.1239188760.

The spelling of 169226089 in words is "one hundred sixty-nine million, two hundred twenty-six thousand, eighty-nine".