146185129 has 2 divisors, whose sum is σ = 146185130. Its totient is φ = 146185128.

The previous prime is 146185073. The next prime is 146185133. The reversal of 146185129 is 921581641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 3143529 = 11960^2 + 1773^2 .

It is a cyclic number.

It is not a de Polignac number, because 146185129 - 2¹⁹ = 145660841 is a prime.

It is not a weakly prime, because it can be changed into another prime (146185139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73092564 + 73092565.

It is an arithmetic number, because the mean of its divisors is an integer number (73092565).

Almost surely, 2^146185129 is an apocalyptic number.

It is an amenable number.

146185129 is a deficient number, since it is larger than the sum of its proper divisors (1).

146185129 is an equidigital number, since it uses as much as digits as its factorization.

146185129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 37.

The square root of 146185129 is about 12090.7042392079. The cubic root of 146185129 is about 526.7862109574.

The spelling of 146185129 in words is "one hundred forty-six million, one hundred eighty-five thousand, one hundred twenty-nine".