4455135649 has 2 divisors, whose sum is σ = 4455135650. Its totient is φ = 4455135648.

The previous prime is 4455135647. The next prime is 4455135661. The reversal of 4455135649 is 9465315544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4364980624 + 90155025 = 66068^2 + 9495^2 .

It is a cyclic number.

It is not a de Polignac number, because 4455135649 - 2¹ = 4455135647 is a prime.

Together with 4455135647, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4455135599 and 4455135608.

It is not a weakly prime, because it can be changed into another prime (4455135647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2227567824 + 2227567825.

It is an arithmetic number, because the mean of its divisors is an integer number (2227567825).

Almost surely, 2^4455135649 is an apocalyptic number.

It is an amenable number.

4455135649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4455135649 is an equidigital number, since it uses as much as digits as its factorization.

4455135649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

The square root of 4455135649 is about 66746.8025376497. The cubic root of 4455135649 is about 1645.4586660883.

It can be divided in two parts, 44551 and 35649, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 4455135649 in words is "four billion, four hundred fifty-five million, one hundred thirty-five thousand, six hundred forty-nine".