1532561 has 4 divisors (see below), whose sum is σ = 1546992. Its totient is φ = 1518132.

The previous prime is 1532551. The next prime is 1532579. The reversal of 1532561 is 1652351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1532561 - 2¹⁸ = 1270417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1532551) 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, 7055 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (386748).

2^1532561 is an apocalyptic number.

It is an amenable number.

1532561 is a deficient number, since it is larger than the sum of its proper divisors (14431).

1532561 is a wasteful number, since it uses less digits than its factorization.

1532561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14430.

The product of its digits is 900, while the sum is 23.

The square root of 1532561 is about 1237.9664777368. The cubic root of 1532561 is about 115.2937919700.

The spelling of 1532561 in words is "one million, five hundred thirty-two thousand, five hundred sixty-one".