113204129 has 2 divisors, whose sum is σ = 113204130. Its totient is φ = 113204128.

The previous prime is 113204111. The next prime is 113204149. The reversal of 113204129 is 921402311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62410000 + 50794129 = 7900^2 + 7127^2 .

It is a cyclic number.

It is not a de Polignac number, because 113204129 - 2¹² = 113200033 is a prime.

It is not a weakly prime, because it can be changed into another prime (113204149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56602064 + 56602065.

It is an arithmetic number, because the mean of its divisors is an integer number (56602065).

Almost surely, 2^113204129 is an apocalyptic number.

It is an amenable number.

113204129 is a deficient number, since it is larger than the sum of its proper divisors (1).

113204129 is an equidigital number, since it uses as much as digits as its factorization.

113204129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 113204129 is about 10639.7429010291. The cubic root of 113204129 is about 483.7497525299.

The spelling of 113204129 in words is "one hundred thirteen million, two hundred four thousand, one hundred twenty-nine".