1545544 has 64 divisors (see below), whose sum is σ = 3911040. Its totient is φ = 552960.

The previous prime is 1545539. The next prime is 1545547. The reversal of 1545544 is 4455451.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1545547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7912 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (61110).

2^1545544 is an apocalyptic number.

1545544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1545544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1955520).

1545544 is an abundant number, since it is smaller than the sum of its proper divisors (2365496).

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

1545544 is a wasteful number, since it uses less digits than its factorization.

1545544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 226 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 1545544 is about 1243.1990990988. The cubic root of 1545544 is about 115.6184451117.

It can be divided in two parts, 154 and 5544, that multiplied together give a square (853776 = 924²).

The spelling of 1545544 in words is "one million, five hundred forty-five thousand, five hundred forty-four".