1603164 has 12 divisors (see below), whose sum is σ = 3740744. Its totient is φ = 534384.

The previous prime is 1603159. The next prime is 1603183. The reversal of 1603164 is 4613061.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1603164.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 66787 + ... + 66810.

2^1603164 is an apocalyptic number.

It is an amenable number.

1603164 is an abundant number, since it is smaller than the sum of its proper divisors (2137580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1603164 is a wasteful number, since it uses less digits than its factorization.

1603164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133604 (or 133602 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1603164 is about 1266.1611271872. The cubic root of 1603164 is about 117.0377553658.

The spelling of 1603164 in words is "one million, six hundred three thousand, one hundred sixty-four".