1143270 has 24 divisors (see below), whose sum is σ = 2972736. Its totient is φ = 304848.

The previous prime is 1143269. The next prime is 1143281. The reversal of 1143270 is 723411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6262 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (123864).

2^1143270 is an apocalyptic number.

1143270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143270 is an abundant number, since it is smaller than the sum of its proper divisors (1829466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143270 is a wasteful number, since it uses less digits than its factorization.

1143270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12716 (or 12713 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1143270 is about 1069.2380464611. The cubic root of 1143270 is about 104.5641799534.

Adding to 1143270 its reverse (723411), we get a palindrome (1866681).

The spelling of 1143270 in words is "one million, one hundred forty-three thousand, two hundred seventy".