116243129 has 2 divisors, whose sum is σ = 116243130. Its totient is φ = 116243128.

The previous prime is 116243119. The next prime is 116243131. The reversal of 116243129 is 921342611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87459904 + 28783225 = 9352^2 + 5365^2 .

It is a cyclic number.

It is not a de Polignac number, because 116243129 - 2⁸ = 116242873 is a prime.

Together with 116243131, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 116243129 parts by 15247 straight cuts.

It is not a weakly prime, because it can be changed into another prime (116243119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58121564 + 58121565.

It is an arithmetic number, because the mean of its divisors is an integer number (58121565).

Almost surely, 2^116243129 is an apocalyptic number.

It is an amenable number.

116243129 is a deficient number, since it is larger than the sum of its proper divisors (1).

116243129 is an equidigital number, since it uses as much as digits as its factorization.

116243129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 116243129 is about 10781.6106867202. The cubic root of 116243129 is about 488.0403881851.

The spelling of 116243129 in words is "one hundred sixteen million, two hundred forty-three thousand, one hundred twenty-nine".