1487545 has 4 divisors (see below), whose sum is σ = 1785060. Its totient is φ = 1190032.

The previous prime is 1487543. The next prime is 1487557. The reversal of 1487545 is 5457841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5457841 = 71 ⋅76871.

It can be written as a sum of positive squares in 2 ways, for example, as 1140624 + 346921 = 1068^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487545 - 2¹ = 1487543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1487545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148750 + ... + 148759.

It is an arithmetic number, because the mean of its divisors is an integer number (446265).

2^1487545 is an apocalyptic number.

It is an amenable number.

1487545 is a deficient number, since it is larger than the sum of its proper divisors (297515).

1487545 is an equidigital number, since it uses as much as digits as its factorization.

1487545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297514.

The product of its digits is 22400, while the sum is 34.

The square root of 1487545 is about 1219.6495398269. The cubic root of 1487545 is about 114.1537118043.

The spelling of 1487545 in words is "one million, four hundred eighty-seven thousand, five hundred forty-five".