1603542 has 32 divisors (see below), whose sum is σ = 3456000. Its totient is φ = 494208.

The previous prime is 1603541. The next prime is 1603573. The reversal of 1603542 is 2453061.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603541) 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 15 ways as a sum of consecutive naturals, for example, 7959 + ... + 8157.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

2^1603542 is an apocalyptic number.

1603542 is an abundant number, since it is smaller than the sum of its proper divisors (1852458).

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

1603542 is a wasteful number, since it uses less digits than its factorization.

1603542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1603542 is about 1266.3103884909. The cubic root of 1603542 is about 117.0469531761.

It can be divided in two parts, 1603 and 542, that added together give a triangular number (2145 = T₆₅).

The spelling of 1603542 in words is "one million, six hundred three thousand, five hundred forty-two".