2145333266 has 4 divisors (see below), whose sum is σ = 3217999902. Its totient is φ = 1072666632.

The previous prime is 2145333259. The next prime is 2145333293. The reversal of 2145333266 is 6623335412.

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

It can be written as a sum of positive squares in only one way, i.e., 1961161225 + 184172041 = 44285^2 + 13571^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536333315 + ... + 536333318.

Almost surely, 2^2145333266 is an apocalyptic number.

2145333266 is a deficient number, since it is larger than the sum of its proper divisors (1072666636).

2145333266 is a wasteful number, since it uses less digits than its factorization.

2145333266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072666635.

The product of its digits is 77760, while the sum is 35.

The square root of 2145333266 is about 46317.7424536214. The cubic root of 2145333266 is about 1289.7283778012.

Adding to 2145333266 its reverse (6623335412), we get a palindrome (8768668678).

The spelling of 2145333266 in words is "two billion, one hundred forty-five million, three hundred thirty-three thousand, two hundred sixty-six".