169001449 has 2 divisors, whose sum is σ = 169001450. Its totient is φ = 169001448.

The previous prime is 169001411. The next prime is 169001479. The reversal of 169001449 is 944100961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135303424 + 33698025 = 11632^2 + 5805^2 .

It is a cyclic number.

It is not a de Polignac number, because 169001449 - 2⁷ = 169001321 is a prime.

It is a super-2 number, since 2×169001449² = 57122979528199202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (169001479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84500724 + 84500725.

It is an arithmetic number, because the mean of its divisors is an integer number (84500725).

Almost surely, 2^169001449 is an apocalyptic number.

It is an amenable number.

169001449 is a deficient number, since it is larger than the sum of its proper divisors (1).

169001449 is an equidigital number, since it uses as much as digits as its factorization.

169001449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 169001449 is about 13000.0557306498. The cubic root of 169001449 is about 552.8790614807.

The spelling of 169001449 in words is "one hundred sixty-nine million, one thousand, four hundred forty-nine".