1545564 has 36 divisors (see below), whose sum is σ = 3767624. Its totient is φ = 492768.

The previous prime is 1545563. The next prime is 1545569. The reversal of 1545564 is 4655451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26167 + ... + 26225.

2^1545564 is an apocalyptic number.

It is an amenable number.

1545564 is an abundant number, since it is smaller than the sum of its proper divisors (2222060).

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

1545564 is a wasteful number, since it uses less digits than its factorization.

1545564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 101 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 1545564 is about 1243.2071428366. The cubic root of 1545564 is about 115.6189438269.

The spelling of 1545564 in words is "one million, five hundred forty-five thousand, five hundred sixty-four".