1562545 has 4 divisors (see below), whose sum is σ = 1875060. Its totient is φ = 1250032.

The previous prime is 1562543. The next prime is 1562567. The reversal of 1562545 is 5452651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 478864 + 1083681 = 692^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1562545 - 2¹ = 1562543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1562543) 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, 156250 + ... + 156259.

It is an arithmetic number, because the mean of its divisors is an integer number (468765).

2^1562545 is an apocalyptic number.

It is an amenable number.

1562545 is a deficient number, since it is larger than the sum of its proper divisors (312515).

1562545 is an equidigital number, since it uses as much as digits as its factorization.

1562545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312514.

The product of its digits is 6000, while the sum is 28.

The square root of 1562545 is about 1250.0179998704. The cubic root of 1562545 is about 116.0408348109.

It can be divided in two parts, 156 and 2545, that added together give a triangular number (2701 = T₇₃).

The spelling of 1562545 in words is "one million, five hundred sixty-two thousand, five hundred forty-five".