154514189 has 2 divisors, whose sum is σ = 154514190. Its totient is φ = 154514188.

The previous prime is 154514177. The next prime is 154514221. The reversal of 154514189 is 981415451.

It is a happy number.

154514189 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., 94575625 + 59938564 = 9725^2 + 7742^2 .

It is a cyclic number.

It is not a de Polignac number, because 154514189 - 2¹⁶ = 154448653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154514119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77257094 + 77257095.

It is an arithmetic number, because the mean of its divisors is an integer number (77257095).

Almost surely, 2^154514189 is an apocalyptic number.

It is an amenable number.

154514189 is a deficient number, since it is larger than the sum of its proper divisors (1).

154514189 is an equidigital number, since it uses as much as digits as its factorization.

154514189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 38.

The square root of 154514189 is about 12430.3736468378. The cubic root of 154514189 is about 536.6067387185.

The spelling of 154514189 in words is "one hundred fifty-four million, five hundred fourteen thousand, one hundred eighty-nine".