1142685 has 24 divisors (see below), whose sum is σ = 2015520. Its totient is φ = 598752.

The previous prime is 1142677. The next prime is 1142693. The reversal of 1142685 is 5862411.

It is an interprime number because it is at equal distance from previous prime (1142677) and next prime (1142693).

It is not a de Polignac number, because 1142685 - 2³ = 1142677 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2826 + ... + 3204.

It is an arithmetic number, because the mean of its divisors is an integer number (83980).

2^1142685 is an apocalyptic number.

1142685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1142685 is a deficient number, since it is larger than the sum of its proper divisors (872835).

1142685 is a wasteful number, since it uses less digits than its factorization.

1142685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457 (or 454 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1142685 is about 1068.9644521685. The cubic root of 1142685 is about 104.5463420902.

It can be divided in two parts, 11426 and 85, that added together give a palindrome (11511).

The spelling of 1142685 in words is "one million, one hundred forty-two thousand, six hundred eighty-five".