1242273 has 16 divisors (see below), whose sum is σ = 1742400. Its totient is φ = 786240.

The previous prime is 1242271. The next prime is 1242289. The reversal of 1242273 is 3722421.

It is not a de Polignac number, because 1242273 - 2¹ = 1242271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9418 + ... + 9548.

It is an arithmetic number, because the mean of its divisors is an integer number (108900).

2^1242273 is an apocalyptic number.

It is an amenable number.

1242273 is a deficient number, since it is larger than the sum of its proper divisors (500127).

1242273 is a wasteful number, since it uses less digits than its factorization.

1242273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272.

The product of its digits is 672, while the sum is 21.

The square root of 1242273 is about 1114.5730124133. The cubic root of 1242273 is about 107.4993113351.

Adding to 1242273 its reverse (3722421), we get a palindrome (4964694).

The spelling of 1242273 in words is "one million, two hundred forty-two thousand, two hundred seventy-three".