1200427 has 4 divisors (see below), whose sum is σ = 1226016. Its totient is φ = 1174840.

The previous prime is 1200403. The next prime is 1200443. The reversal of 1200427 is 7240021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7240021 = 47 ⋅154043.

It is a cyclic number.

It is not a de Polignac number, because 1200427 - 2¹⁵ = 1167659 is a prime.

It is a Duffinian number.

1200427 is a lucky number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1200427.

It is not an unprimeable number, because it can be changed into a prime (1200467) 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, 12724 + ... + 12817.

It is an arithmetic number, because the mean of its divisors is an integer number (306504).

2^1200427 is an apocalyptic number.

1200427 is a deficient number, since it is larger than the sum of its proper divisors (25589).

1200427 is an equidigital number, since it uses as much as digits as its factorization.

1200427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25588.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1200427 is about 1095.6399956190. The cubic root of 1200427 is about 106.2784597349.

Adding to 1200427 its reverse (7240021), we get a palindrome (8440448).

The spelling of 1200427 in words is "one million, two hundred thousand, four hundred twenty-seven".