154790089 has 2 divisors, whose sum is σ = 154790090. Its totient is φ = 154790088.

The previous prime is 154790087. The next prime is 154790113. The reversal of 154790089 is 980097451.

154790089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139712400 + 15077689 = 11820^2 + 3883^2 .

It is an emirp because it is prime and its reverse (980097451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154790089 - 2¹ = 154790087 is a prime.

Together with 154790087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (154790087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77395044 + 77395045.

It is an arithmetic number, because the mean of its divisors is an integer number (77395045).

Almost surely, 2^154790089 is an apocalyptic number.

It is an amenable number.

154790089 is a deficient number, since it is larger than the sum of its proper divisors (1).

154790089 is an equidigital number, since it uses as much as digits as its factorization.

154790089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 154790089 is about 12441.4665132371. The cubic root of 154790089 is about 536.9259365182.

The spelling of 154790089 in words is "one hundred fifty-four million, seven hundred ninety thousand, eighty-nine".