169228953 has 32 divisors (see below), whose sum is σ = 266457600. Its totient is φ = 105848208.

The previous prime is 169228901. The next prime is 169228973. The reversal of 169228953 is 359822961.

It is not a de Polignac number, because 169228953 - 2²⁰ = 168180377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169228899 and 169228908.

It is not an unprimeable number, because it can be changed into a prime (169228973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53350 + ... + 56432.

It is an arithmetic number, because the mean of its divisors is an integer number (8326800).

Almost surely, 2^169228953 is an apocalyptic number.

It is an amenable number.

169228953 is a deficient number, since it is larger than the sum of its proper divisors (97228647).

169228953 is a wasteful number, since it uses less digits than its factorization.

169228953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 3212 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 169228953 is about 13008.8029041876. The cubic root of 169228953 is about 553.1270392341.

The spelling of 169228953 in words is "one hundred sixty-nine million, two hundred twenty-eight thousand, nine hundred fifty-three".