1081345 has 8 divisors (see below), whose sum is σ = 1354176. Its totient is φ = 827376.

The previous prime is 1081337. The next prime is 1081351. The reversal of 1081345 is 5431801.

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 1081345 - 2³ = 1081337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4587 + ... + 4816.

It is an arithmetic number, because the mean of its divisors is an integer number (169272).

It is a Proth number, since it is equal to 33 ⋅ 2¹⁵ + 1 and 33 < 2¹⁵.

2^1081345 is an apocalyptic number.

It is an amenable number.

1081345 is a deficient number, since it is larger than the sum of its proper divisors (272831).

1081345 is an equidigital number, since it uses as much as digits as its factorization.

1081345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1081345 is about 1039.8773966194. The cubic root of 1081345 is about 102.6411301998.

It can be divided in two parts, 10 and 81345, that multiplied together give a triangular number (813450 = T₁₂₇₅).

The spelling of 1081345 in words is "one million, eighty-one thousand, three hundred forty-five".