1111427 has 2 divisors, whose sum is σ = 1111428. Its totient is φ = 1111426.

The previous prime is 1111423. The next prime is 1111433. The reversal of 1111427 is 7241111.

It is a weak prime.

It is an emirp because it is prime and its reverse (7241111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111427 - 2² = 1111423 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555713 + 555714.

It is an arithmetic number, because the mean of its divisors is an integer number (555714).

2^1111427 is an apocalyptic number.

1111427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111427 is an equidigital number, since it uses as much as digits as its factorization.

1111427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56, while the sum is 17.

The square root of 1111427 is about 1054.2423819976. The cubic root of 1111427 is about 103.5842313373.

Adding to 1111427 its reverse (7241111), we get a palindrome (8352538).

The spelling of 1111427 in words is "one million, one hundred eleven thousand, four hundred twenty-seven".