1112129 has 2 divisors, whose sum is σ = 1112130. Its totient is φ = 1112128.

The previous prime is 1112113. The next prime is 1112131. The reversal of 1112129 is 9212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 61504 = 1025^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112129 - 2⁴ = 1112113 is a prime.

It is a Sophie Germain prime.

Together with 1112131, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1112159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556064 + 556065.

It is an arithmetic number, because the mean of its divisors is an integer number (556065).

2^1112129 is an apocalyptic number.

It is an amenable number.

1112129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112129 is an equidigital number, since it uses as much as digits as its factorization.

1112129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 17.

The square root of 1112129 is about 1054.5752699547. The cubic root of 1112129 is about 103.6060353863.

The spelling of 1112129 in words is "one million, one hundred twelve thousand, one hundred twenty-nine".