1142273 has 4 divisors (see below), whose sum is σ = 1246128. Its totient is φ = 1038420.

The previous prime is 1142269. The next prime is 1142279. The reversal of 1142273 is 3722411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1142273 - 2² = 1142269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51911 + ... + 51932.

It is an arithmetic number, because the mean of its divisors is an integer number (311532).

2^1142273 is an apocalyptic number.

It is an amenable number.

1142273 is a deficient number, since it is larger than the sum of its proper divisors (103855).

1142273 is a wasteful number, since it uses less digits than its factorization.

1142273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103854.

The product of its digits is 336, while the sum is 20.

The square root of 1142273 is about 1068.7717249254. The cubic root of 1142273 is about 104.5337757018.

Adding to 1142273 its reverse (3722411), we get a palindrome (4864684).

The spelling of 1142273 in words is "one million, one hundred forty-two thousand, two hundred seventy-three".