169020049 has 8 divisors (see below), whose sum is σ = 184518720. Its totient is φ = 153543600.

The previous prime is 169020043. The next prime is 169020097. The reversal of 169020049 is 940020961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169020049 - 2⁵ = 169020017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169020049.

It is not an unprimeable number, because it can be changed into a prime (169020043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13092 + ... + 22570.

It is an arithmetic number, because the mean of its divisors is an integer number (23064840).

Almost surely, 2^169020049 is an apocalyptic number.

It is an amenable number.

169020049 is a deficient number, since it is larger than the sum of its proper divisors (15498671).

169020049 is a wasteful number, since it uses less digits than its factorization.

169020049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 169020049 is about 13000.7710925160. The cubic root of 169020049 is about 552.8993436999.

The spelling of 169020049 in words is "one hundred sixty-nine million, twenty thousand, forty-nine".