2133145345 has 8 divisors (see below), whose sum is σ = 2560061376. Its totient is φ = 1706324976.

The previous prime is 2133145297. The next prime is 2133145361. The reversal of 2133145345 is 5435413312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2133145345 - 2²³ = 2124756737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41334 + ... + 77296.

It is an arithmetic number, because the mean of its divisors is an integer number (320007672).

Almost surely, 2^2133145345 is an apocalyptic number.

It is an amenable number.

2133145345 is a deficient number, since it is larger than the sum of its proper divisors (426916031).

2133145345 is a wasteful number, since it uses less digits than its factorization.

2133145345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47831.

The product of its digits is 21600, while the sum is 31.

The square root of 2133145345 is about 46185.9864569330. The cubic root of 2133145345 is about 1287.2813657092.

Adding to 2133145345 its reverse (5435413312), we get a palindrome (7568558657).

The spelling of 2133145345 in words is "two billion, one hundred thirty-three million, one hundred forty-five thousand, three hundred forty-five".