1142385 has 8 divisors (see below), whose sum is σ = 1827840. Its totient is φ = 609264.

The previous prime is 1142363. The next prime is 1142389. The reversal of 1142385 is 5832411.

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

It is not a de Polignac number, because 1142385 - 2⁵ = 1142353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38065 + ... + 38094.

It is an arithmetic number, because the mean of its divisors is an integer number (228480).

2^1142385 is an apocalyptic number.

1142385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142385 is a deficient number, since it is larger than the sum of its proper divisors (685455).

1142385 is an equidigital number, since it uses as much as digits as its factorization.

1142385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76167.

The product of its digits is 960, while the sum is 24.

The square root of 1142385 is about 1068.8241202368. The cubic root of 1142385 is about 104.5371921064.

Adding to 1142385 its reverse (5832411), we get a palindrome (6974796).

The spelling of 1142385 in words is "one million, one hundred forty-two thousand, three hundred eighty-five".