2135563145 has 4 divisors (see below), whose sum is σ = 2562675780. Its totient is φ = 1708450512.

The previous prime is 2135563093. The next prime is 2135563181. The reversal of 2135563145 is 5413655312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1346009344 + 789553801 = 36688^2 + 28099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135563145 - 2⁶ = 2135563081 is a prime.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 213556310 + ... + 213556319.

It is an arithmetic number, because the mean of its divisors is an integer number (640668945).

Almost surely, 2^2135563145 is an apocalyptic number.

It is an amenable number.

2135563145 is a deficient number, since it is larger than the sum of its proper divisors (427112635).

2135563145 is an equidigital number, since it uses as much as digits as its factorization.

2135563145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427112634.

The product of its digits is 54000, while the sum is 35.

The square root of 2135563145 is about 46212.1536503115. The cubic root of 2135563145 is about 1287.7675356941.

The spelling of 2135563145 in words is "two billion, one hundred thirty-five million, five hundred sixty-three thousand, one hundred forty-five".