1142170 has 8 divisors (see below), whose sum is σ = 2055924. Its totient is φ = 456864.

The previous prime is 1142161. The next prime is 1142171. The reversal of 1142170 is 712411.

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 136161 = 1003^2 + 369^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1142171) 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 3 ways as a sum of consecutive naturals, for example, 57099 + ... + 57118.

2^1142170 is an apocalyptic number.

1142170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142170 is a deficient number, since it is larger than the sum of its proper divisors (913754).

1142170 is a wasteful number, since it uses less digits than its factorization.

1142170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114224.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1142170 is about 1068.7235376841. The cubic root of 1142170 is about 104.5306336325.

Adding to 1142170 its reverse (712411), we get a palindrome (1854581).

The spelling of 1142170 in words is "one million, one hundred forty-two thousand, one hundred seventy".