1053561 has 8 divisors (see below), whose sum is σ = 1465920. Its totient is φ = 671792.

The previous prime is 1053557. The next prime is 1053571. The reversal of 1053561 is 1653501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1053561 - 2² = 1053557 is a prime.

It is a super-2 number, since 2×1053561² = 2219981561442, which contains 22 as substring.

1053561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1053511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7566 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (183240).

2^1053561 is an apocalyptic number.

It is an amenable number.

1053561 is a deficient number, since it is larger than the sum of its proper divisors (412359).

1053561 is a wasteful number, since it uses less digits than its factorization.

1053561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15295.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1053561 is about 1026.4311959406. The cubic root of 1053561 is about 101.7544072208.

The spelling of 1053561 in words is "one million, fifty-three thousand, five hundred sixty-one".