2153444633 has 2 divisors, whose sum is σ = 2153444634. Its totient is φ = 2153444632.

The previous prime is 2153444603. The next prime is 2153444719. The reversal of 2153444633 is 3364443512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2146746889 + 6697744 = 46333^2 + 2588^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153444633 - 2⁶ = 2153444569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2153444593 and 2153444602.

It is not a weakly prime, because it can be changed into another prime (2153444603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076722316 + 1076722317.

It is an arithmetic number, because the mean of its divisors is an integer number (1076722317).

Almost surely, 2^2153444633 is an apocalyptic number.

It is an amenable number.

2153444633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153444633 is an equidigital number, since it uses as much as digits as its factorization.

2153444633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 35.

The square root of 2153444633 is about 46405.2220445070. Note that the first 3 decimals coincide. The cubic root of 2153444633 is about 1291.3517935024.

The spelling of 2153444633 in words is "two billion, one hundred fifty-three million, four hundred forty-four thousand, six hundred thirty-three".