2145405235 has 16 divisors (see below), whose sum is σ = 2773013760. Its totient is φ = 1588174560.

The previous prime is 2145405233. The next prime is 2145405271. The reversal of 2145405235 is 5325045412.

It is not a de Polignac number, because 2145405235 - 2¹ = 2145405233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145405197 and 2145405206.

It is not an unprimeable number, because it can be changed into a prime (2145405233) 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 in 15 ways as a sum of consecutive naturals, for example, 258511 + ... + 266680.

It is an arithmetic number, because the mean of its divisors is an integer number (173313360).

Almost surely, 2^2145405235 is an apocalyptic number.

2145405235 is a deficient number, since it is larger than the sum of its proper divisors (627608525).

2145405235 is a wasteful number, since it uses less digits than its factorization.

2145405235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525258.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2145405235 is about 46318.5193524145. The cubic root of 2145405235 is about 1289.7427997133.

The spelling of 2145405235 in words is "two billion, one hundred forty-five million, four hundred five thousand, two hundred thirty-five".