1047561 has 4 divisors (see below), whose sum is σ = 1396752. Its totient is φ = 698372.

The previous prime is 1047559. The next prime is 1047587. The reversal of 1047561 is 1657401.

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 1047561 - 2¹ = 1047559 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1047511) 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, 174591 + ... + 174596.

It is an arithmetic number, because the mean of its divisors is an integer number (349188).

2^1047561 is an apocalyptic number.

It is an amenable number.

1047561 is a deficient number, since it is larger than the sum of its proper divisors (349191).

1047561 is an equidigital number, since it uses as much as digits as its factorization.

1047561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349190.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1047561 is about 1023.5042745392. The cubic root of 1047561 is about 101.5608765500.

Adding to 1047561 its product of nonzero digits (840), we get a palindrome (1048401).

The spelling of 1047561 in words is "one million, forty-seven thousand, five hundred sixty-one".