169193493 has 24 divisors (see below), whose sum is σ = 281356608. Its totient is φ = 95971392.

The previous prime is 169193477. The next prime is 169193509. The reversal of 169193493 is 394391961.

It is an interprime number because it is at equal distance from previous prime (169193477) and next prime (169193509).

It is not a de Polignac number, because 169193493 - 2⁴ = 169193477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169193473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1171 + ... + 18432.

It is an arithmetic number, because the mean of its divisors is an integer number (11723192).

Almost surely, 2^169193493 is an apocalyptic number.

It is an amenable number.

169193493 is a deficient number, since it is larger than the sum of its proper divisors (112163115).

169193493 is a wasteful number, since it uses less digits than its factorization.

169193493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19753 (or 19750 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 169193493 is about 13007.4399095287. The cubic root of 169193493 is about 553.0884027112.

The spelling of 169193493 in words is "one hundred sixty-nine million, one hundred ninety-three thousand, four hundred ninety-three".