39121129 has 2 divisors, whose sum is σ = 39121130. Its totient is φ = 39121128.

The previous prime is 39121051. The next prime is 39121153. The reversal of 39121129 is 92112193.

39121129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 121104 = 6245^2 + 348^2 .

It is an emirp because it is prime and its reverse (92112193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39121129 - 2⁹ = 39120617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39121097 and 39121106.

It is not a weakly prime, because it can be changed into another prime (39121169) 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, 19560564 + 19560565.

It is an arithmetic number, because the mean of its divisors is an integer number (19560565).

Almost surely, 2^39121129 is an apocalyptic number.

It is an amenable number.

39121129 is a deficient number, since it is larger than the sum of its proper divisors (1).

39121129 is an equidigital number, since it uses as much as digits as its factorization.

39121129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 28.

The square root of 39121129 is about 6254.6885613914. The cubic root of 39121129 is about 339.4718703806.

It can be divided in two parts, 3912 and 1129, that added together give a square (5041 = 71²).

The spelling of 39121129 in words is "thirty-nine million, one hundred twenty-one thousand, one hundred twenty-nine".