1076561 has 4 divisors (see below), whose sum is σ = 1123392. Its totient is φ = 1029732.

The previous prime is 1076557. The next prime is 1076563. The reversal of 1076561 is 1656701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1656701 = 17 ⋅97453.

It is a cyclic number.

It is not a de Polignac number, because 1076561 - 2² = 1076557 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1076561.

It is not an unprimeable number, because it can be changed into a prime (1076563) 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, 23381 + ... + 23426.

It is an arithmetic number, because the mean of its divisors is an integer number (280848).

2^1076561 is an apocalyptic number.

It is an amenable number.

1076561 is a deficient number, since it is larger than the sum of its proper divisors (46831).

1076561 is an equidigital number, since it uses as much as digits as its factorization.

1076561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46830.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1076561 is about 1037.5745756330. The cubic root of 1076561 is about 102.4895408721.

The spelling of 1076561 in words is "one million, seventy-six thousand, five hundred sixty-one".