1541604 has 12 divisors (see below), whose sum is σ = 3597104. Its totient is φ = 513864.

The previous prime is 1541597. The next prime is 1541629. The reversal of 1541604 is 4061451.

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

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, 64222 + ... + 64245.

2^1541604 is an apocalyptic number.

It is an amenable number.

1541604 is an abundant number, since it is smaller than the sum of its proper divisors (2055500).

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

1541604 is a wasteful number, since it uses less digits than its factorization.

1541604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128474 (or 128472 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1541604 is about 1241.6134664218. The cubic root of 1541604 is about 115.5201141859.

It can be divided in two parts, 1541 and 604, that added together give a triangular number (2145 = T₆₅).

The spelling of 1541604 in words is "one million, five hundred forty-one thousand, six hundred four".