1182385 has 4 divisors (see below), whose sum is σ = 1418868. Its totient is φ = 945904.

The previous prime is 1182383. The next prime is 1182397. The reversal of 1182385 is 5832811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5832811 = 499 ⋅11689.

It can be written as a sum of positive squares in 2 ways, for example, as 628849 + 553536 = 793^2 + 744^2 .

It is a cyclic number.

It is not a de Polignac number, because 1182385 - 2¹ = 1182383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1182383) 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, 118234 + ... + 118243.

It is an arithmetic number, because the mean of its divisors is an integer number (354717).

2^1182385 is an apocalyptic number.

It is an amenable number.

1182385 is a deficient number, since it is larger than the sum of its proper divisors (236483).

1182385 is an equidigital number, since it uses as much as digits as its factorization.

1182385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236482.

The product of its digits is 1920, while the sum is 28.

The square root of 1182385 is about 1087.3752802046. The cubic root of 1182385 is about 105.7433270068.

The spelling of 1182385 in words is "one million, one hundred eighty-two thousand, three hundred eighty-five".