2156300033 has 4 divisors (see below), whose sum is σ = 2186670528. Its totient is φ = 2125929540.

The previous prime is 2156299997. The next prime is 2156300089. The reversal of 2156300033 is 3300036512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2156300033 - 2⁶ = 2156299969 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 = 2156299981 and 2156300008.

It is not an unprimeable number, because it can be changed into a prime (2156300233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15185141 + ... + 15185282.

It is an arithmetic number, because the mean of its divisors is an integer number (546667632).

Almost surely, 2^2156300033 is an apocalyptic number.

It is an amenable number.

2156300033 is a deficient number, since it is larger than the sum of its proper divisors (30370495).

2156300033 is an equidigital number, since it uses as much as digits as its factorization.

2156300033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370494.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 2156300033 is about 46435.9777866257. The cubic root of 2156300033 is about 1291.9223053999.

Adding to 2156300033 its reverse (3300036512), we get a palindrome (5456336545).

The spelling of 2156300033 in words is "two billion, one hundred fifty-six million, three hundred thousand, thirty-three".