2145633475 has 6 divisors (see below), whose sum is σ = 2660585540. Its totient is φ = 1716506760.

The previous prime is 2145633439. The next prime is 2145633481. The reversal of 2145633475 is 5743365412.

It is a happy number.

It is not a de Polignac number, because 2145633475 - 2²⁹ = 1608762563 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42912645 + ... + 42912694.

Almost surely, 2^2145633475 is an apocalyptic number.

2145633475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2145633475 is a deficient number, since it is larger than the sum of its proper divisors (514952065).

2145633475 is an equidigital number, since it uses as much as digits as its factorization.

2145633475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85825349 (or 85825344 counting only the distinct ones).

The product of its digits is 302400, while the sum is 40.

The square root of 2145633475 is about 46320.9830962168. The cubic root of 2145633475 is about 1289.7885347340.

Adding to 2145633475 its reverse (5743365412), we get a palindrome (7888998887).

The spelling of 2145633475 in words is "two billion, one hundred forty-five million, six hundred thirty-three thousand, four hundred seventy-five".