2045321233 has 4 divisors (see below), whose sum is σ = 2045577780. Its totient is φ = 2045064688.

The previous prime is 2045321191. The next prime is 2045321263. The reversal of 2045321233 is 3321235402.

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 818360449 + 1226960784 = 28607^2 + 35028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045321233 - 2¹³ = 2045313041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2045321198 and 2045321207.

It is not an unprimeable number, because it can be changed into a prime (2045321263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115918 + ... + 132391.

It is an arithmetic number, because the mean of its divisors is an integer number (511394445).

Almost surely, 2^2045321233 is an apocalyptic number.

It is an amenable number.

2045321233 is a deficient number, since it is larger than the sum of its proper divisors (256547).

2045321233 is an equidigital number, since it uses as much as digits as its factorization.

2045321233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256546.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 2045321233 is about 45225.2278380109. The cubic root of 2045321233 is about 1269.3669180220.

Adding to 2045321233 its reverse (3321235402), we get a palindrome (5366556635).

The spelling of 2045321233 in words is "two billion, forty-five million, three hundred twenty-one thousand, two hundred thirty-three".