1078581 has 8 divisors (see below), whose sum is σ = 1643584. Its totient is φ = 616320.

The previous prime is 1078559. The next prime is 1078589. The reversal of 1078581 is 1858701.

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

It is not a de Polignac number, because 1078581 - 2¹³ = 1070389 is a prime.

It is a super-2 number, since 2×1078581² = 2326673947122, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078589) 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, 25660 + ... + 25701.

It is an arithmetic number, because the mean of its divisors is an integer number (205448).

2^1078581 is an apocalyptic number.

It is an amenable number.

1078581 is a deficient number, since it is larger than the sum of its proper divisors (565003).

1078581 is an equidigital number, since it uses as much as digits as its factorization.

1078581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51371.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 1078581 is about 1038.5475434471. The cubic root of 1078581 is about 102.5536027387.

The spelling of 1078581 in words is "one million, seventy-eight thousand, five hundred eighty-one".