612116129 has 2 divisors, whose sum is σ = 612116130. Its totient is φ = 612116128.

The previous prime is 612116083. The next prime is 612116143. The reversal of 612116129 is 921611216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480486400 + 131629729 = 21920^2 + 11473^2 .

It is a cyclic number.

It is not a de Polignac number, because 612116129 - 2⁸ = 612115873 is a prime.

It is not a weakly prime, because it can be changed into another prime (612116149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306058064 + 306058065.

It is an arithmetic number, because the mean of its divisors is an integer number (306058065).

Almost surely, 2^612116129 is an apocalyptic number.

It is an amenable number.

612116129 is a deficient number, since it is larger than the sum of its proper divisors (1).

612116129 is an equidigital number, since it uses as much as digits as its factorization.

612116129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 612116129 is about 24740.9807606732. The cubic root of 612116129 is about 849.0721728246.

The spelling of 612116129 in words is "six hundred twelve million, one hundred sixteen thousand, one hundred twenty-nine".