1081493 has 8 divisors (see below), whose sum is σ = 1265088. Its totient is φ = 905184.

The previous prime is 1081477. The next prime is 1081501. The reversal of 1081493 is 3941801.

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

It is not a de Polignac number, because 1081493 - 2⁴ = 1081477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081403) 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, 1496 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (158136).

2^1081493 is an apocalyptic number.

It is an amenable number.

1081493 is a deficient number, since it is larger than the sum of its proper divisors (183595).

1081493 is an equidigital number, since it uses as much as digits as its factorization.

1081493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1081493 is about 1039.9485564200. The cubic root of 1081493 is about 102.6458127000.

The spelling of 1081493 in words is "one million, eighty-one thousand, four hundred ninety-three".