154234430849 has 2 divisors, whose sum is σ = 154234430850. Its totient is φ = 154234430848.

The previous prime is 154234430827. The next prime is 154234430899. The reversal of 154234430849 is 948034432451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117010516624 + 37223914225 = 342068^2 + 192935^2 .

It is an emirp because it is prime and its reverse (948034432451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154234430849 - 2²⁰ = 154233382273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (154234430899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77117215424 + 77117215425.

It is an arithmetic number, because the mean of its divisors is an integer number (77117215425).

Almost surely, 2^154234430849 is an apocalyptic number.

It is an amenable number.

154234430849 is a deficient number, since it is larger than the sum of its proper divisors (1).

154234430849 is an equidigital number, since it uses as much as digits as its factorization.

154234430849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 154234430849 in words is "one hundred fifty-four billion, two hundred thirty-four million, four hundred thirty thousand, eight hundred forty-nine".