1142002 has 4 divisors (see below), whose sum is σ = 1713006. Its totient is φ = 571000.

The previous prime is 1141999. The next prime is 1142003. The reversal of 1142002 is 2002411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 720801 + 421201 = 849^2 + 649^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1142002.

It is not an unprimeable number, because it can be changed into a prime (1142003) 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 as a sum of consecutive naturals, namely, 285499 + ... + 285502.

2^1142002 is an apocalyptic number.

1142002 is a deficient number, since it is larger than the sum of its proper divisors (571004).

1142002 is an equidigital number, since it uses as much as digits as its factorization.

1142002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571003.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1142002 is about 1068.6449363563. The cubic root of 1142002 is about 104.5255082987.

Adding to 1142002 its reverse (2002411), we get a palindrome (3144413).

It can be divided in two parts, 114 and 2002, that added together give a square (2116 = 46²).

The spelling of 1142002 in words is "one million, one hundred forty-two thousand, two".