2154377633 has 2 divisors, whose sum is σ = 2154377634. Its totient is φ = 2154377632.

The previous prime is 2154377629. The next prime is 2154377647. The reversal of 2154377633 is 3367734512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1671828544 + 482549089 = 40888^2 + 21967^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154377633 - 2² = 2154377629 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154377033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077188816 + 1077188817.

It is an arithmetic number, because the mean of its divisors is an integer number (1077188817).

Almost surely, 2^2154377633 is an apocalyptic number.

It is an amenable number.

2154377633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154377633 is an equidigital number, since it uses as much as digits as its factorization.

2154377633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 41.

The square root of 2154377633 is about 46415.2737038144. The cubic root of 2154377633 is about 1291.5382633169.

The spelling of 2154377633 in words is "two billion, one hundred fifty-four million, three hundred seventy-seven thousand, six hundred thirty-three".