1116542129 has 2 divisors, whose sum is σ = 1116542130. Its totient is φ = 1116542128.

The previous prime is 1116542101. The next prime is 1116542131. The reversal of 1116542129 is 9212456111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041546529 + 74995600 = 32273^2 + 8660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116542129 - 2⁸ = 1116541873 is a prime.

It is a super-3 number, since 3×1116542129³ (a number of 28 digits) contains 333 as substring.

Together with 1116542131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1116542095 and 1116542104.

It is not a weakly prime, because it can be changed into another prime (1116542179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558271064 + 558271065.

It is an arithmetic number, because the mean of its divisors is an integer number (558271065).

Almost surely, 2^1116542129 is an apocalyptic number.

It is an amenable number.

1116542129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116542129 is an equidigital number, since it uses as much as digits as its factorization.

1116542129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 1116542129 is about 33414.6992953700. The cubic root of 1116542129 is about 1037.4289701021.

The spelling of 1116542129 in words is "one billion, one hundred sixteen million, five hundred forty-two thousand, one hundred twenty-nine".