2151345233 has 2 divisors, whose sum is σ = 2151345234. Its totient is φ = 2151345232.

The previous prime is 2151345199. The next prime is 2151345263. The reversal of 2151345233 is 3325431512.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2096998849 + 54346384 = 45793^2 + 7372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151345233 - 2¹⁴ = 2151328849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151345196 and 2151345205.

It is not a weakly prime, because it can be changed into another prime (2151345263) 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 as a sum of consecutive naturals, namely, 1075672616 + 1075672617.

It is an arithmetic number, because the mean of its divisors is an integer number (1075672617).

Almost surely, 2^2151345233 is an apocalyptic number.

It is an amenable number.

2151345233 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151345233 is an equidigital number, since it uses as much as digits as its factorization.

2151345233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 2151345233 is about 46382.5962296204. The cubic root of 2151345233 is about 1290.9320094040.

Adding to 2151345233 its reverse (3325431512), we get a palindrome (5476776745).

The spelling of 2151345233 in words is "two billion, one hundred fifty-one million, three hundred forty-five thousand, two hundred thirty-three".