1603413 has 24 divisors (see below), whose sum is σ = 2735616. Its totient is φ = 885600.

The previous prime is 1603411. The next prime is 1603417. The reversal of 1603413 is 3143061.

It is not a de Polignac number, because 1603413 - 2¹ = 1603411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1543 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (113984).

2^1603413 is an apocalyptic number.

It is an amenable number.

1603413 is a deficient number, since it is larger than the sum of its proper divisors (1132203).

1603413 is a wasteful number, since it uses less digits than its factorization.

1603413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1603413 is about 1266.2594520871. The cubic root of 1603413 is about 117.0438144033.

Adding to 1603413 its reverse (3143061), we get a palindrome (4746474).

It can be divided in two parts, 1603 and 413, that added together give a triangular number (2016 = T₆₃).

The spelling of 1603413 in words is "one million, six hundred three thousand, four hundred thirteen".