169459397 has 2 divisors, whose sum is σ = 169459398. Its totient is φ = 169459396.

The previous prime is 169459369. The next prime is 169459399. The reversal of 169459397 is 793954961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99720196 + 69739201 = 9986^2 + 8351^2 .

It is a cyclic number.

It is not a de Polignac number, because 169459397 - 2⁶ = 169459333 is a prime.

Together with 169459399, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169459399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84729698 + 84729699.

It is an arithmetic number, because the mean of its divisors is an integer number (84729699).

Almost surely, 2^169459397 is an apocalyptic number.

It is an amenable number.

169459397 is a deficient number, since it is larger than the sum of its proper divisors (1).

169459397 is an equidigital number, since it uses as much as digits as its factorization.

169459397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 53.

The square root of 169459397 is about 13017.6571240757. The cubic root of 169459397 is about 553.3779950967.

The spelling of 169459397 in words is "one hundred sixty-nine million, four hundred fifty-nine thousand, three hundred ninety-seven".