1142659 has 8 divisors (see below), whose sum is σ = 1313280. Its totient is φ = 973896.

The previous prime is 1142651. The next prime is 1142677. The reversal of 1142659 is 9562411.

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

It is not a de Polignac number, because 1142659 - 2³ = 1142651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142651) 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, 1332 + ... + 2014.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

2^1142659 is an apocalyptic number.

1142659 is a deficient number, since it is larger than the sum of its proper divisors (170621).

1142659 is an equidigital number, since it uses as much as digits as its factorization.

1142659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929.

The product of its digits is 2160, while the sum is 28.

The square root of 1142659 is about 1068.9522907969. The cubic root of 1142659 is about 104.5455491550.

The spelling of 1142659 in words is "one million, one hundred forty-two thousand, six hundred fifty-nine".