2151275033 has 4 divisors (see below), whose sum is σ = 2180744628. Its totient is φ = 2121805440.

The previous prime is 2151275029. The next prime is 2151275041. The reversal of 2151275033 is 3305721512.

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 730512784 + 1420762249 = 27028^2 + 37693^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151275033 - 2² = 2151275029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2151274987 and 2151275005.

It is not an unprimeable number, because it can be changed into a prime (2151275003) 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, 14734688 + ... + 14734833.

It is an arithmetic number, because the mean of its divisors is an integer number (545186157).

Almost surely, 2^2151275033 is an apocalyptic number.

It is an amenable number.

2151275033 is a deficient number, since it is larger than the sum of its proper divisors (29469595).

2151275033 is an equidigital number, since it uses as much as digits as its factorization.

2151275033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29469594.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 2151275033 is about 46381.8394740873. The cubic root of 2151275033 is about 1290.9179678931.

Adding to 2151275033 its reverse (3305721512), we get a palindrome (5456996545).

The spelling of 2151275033 in words is "two billion, one hundred fifty-one million, two hundred seventy-five thousand, thirty-three".