1242367 has 4 divisors (see below), whose sum is σ = 1419856. Its totient is φ = 1064880.

The previous prime is 1242361. The next prime is 1242379. The reversal of 1242367 is 7632421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7632421 = 227 ⋅33623.

It is a cyclic number.

It is not a de Polignac number, because 1242367 - 2³ = 1242359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242361) 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, 88734 + ... + 88747.

It is an arithmetic number, because the mean of its divisors is an integer number (354964).

2^1242367 is an apocalyptic number.

1242367 is a deficient number, since it is larger than the sum of its proper divisors (177489).

1242367 is an equidigital number, since it uses as much as digits as its factorization.

1242367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177488.

The product of its digits is 2016, while the sum is 25.

The square root of 1242367 is about 1114.6151802304. The cubic root of 1242367 is about 107.5020226769.

Adding to 1242367 its reverse (7632421), we get a palindrome (8874788).

The spelling of 1242367 in words is "one million, two hundred forty-two thousand, three hundred sixty-seven".