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111427 is a prime number
BaseRepresentation
bin11011001101000011
312122211221
4123031003
512031202
62215511
7642601
oct331503
9178757
10111427
1176798
1254597
133b944
142c871
1523037
hex1b343

111427 has 2 divisors, whose sum is σ = 111428. Its totient is φ = 111426.

The previous prime is 111409. The next prime is 111431. The reversal of 111427 is 724111.

It is a strong prime.

It is an emirp because it is prime and its reverse (724111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111427 - 211 = 109379 is a prime.

111427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 111427.

It is not a weakly prime, because it can be changed into another prime (111467) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55713 + 55714.

It is an arithmetic number, because the mean of its divisors is an integer number (55714).

2111427 is an apocalyptic number.

111427 is a deficient number, since it is larger than the sum of its proper divisors (1).

111427 is an equidigital number, since it uses as much as digits as its factorization.

111427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56, while the sum is 16.

The square root of 111427 is about 333.8068303675. The cubic root of 111427 is about 48.1205016316.

Adding to 111427 its reverse (724111), we get a palindrome (835538).

The spelling of 111427 in words is "one hundred eleven thousand, four hundred twenty-seven", and thus it is an iban number.