2045545129 has 2 divisors, whose sum is σ = 2045545130. Its totient is φ = 2045545128.

The previous prime is 2045545109. The next prime is 2045545141. The reversal of 2045545129 is 9215455402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1819193104 + 226352025 = 42652^2 + 15045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045545129 - 2²³ = 2037156521 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045545109) 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, 1022772564 + 1022772565.

It is an arithmetic number, because the mean of its divisors is an integer number (1022772565).

Almost surely, 2^2045545129 is an apocalyptic number.

It is an amenable number.

2045545129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045545129 is an equidigital number, since it uses as much as digits as its factorization.

2045545129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 2045545129 is about 45227.7031143524. The cubic root of 2045545129 is about 1269.4132344313.

The spelling of 2045545129 in words is "two billion, forty-five million, five hundred forty-five thousand, one hundred twenty-nine".