4155454049 has 2 divisors, whose sum is σ = 4155454050. Its totient is φ = 4155454048.

The previous prime is 4155454031. The next prime is 4155454057. The reversal of 4155454049 is 9404545514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2586739600 + 1568714449 = 50860^2 + 39607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4155454049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4155453997 and 4155454015.

It is not a weakly prime, because it can be changed into another prime (4155454249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077727024 + 2077727025.

It is an arithmetic number, because the mean of its divisors is an integer number (2077727025).

Almost surely, 2^4155454049 is an apocalyptic number.

It is an amenable number.

4155454049 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155454049 is an equidigital number, since it uses as much as digits as its factorization.

4155454049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288000, while the sum is 41.

The square root of 4155454049 is about 64462.8113643828. The cubic root of 4155454049 is about 1607.7042558632.

The spelling of 4155454049 in words is "four billion, one hundred fifty-five million, four hundred fifty-four thousand, forty-nine".