154056604189 has 2 divisors, whose sum is σ = 154056604190. Its totient is φ = 154056604188.

The previous prime is 154056604181. The next prime is 154056604223. The reversal of 154056604189 is 981406650451.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129792311289 + 24264292900 = 360267^2 + 155770^2 .

It is a cyclic number.

It is not a de Polignac number, because 154056604189 - 2³ = 154056604181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154056604181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77028302094 + 77028302095.

It is an arithmetic number, because the mean of its divisors is an integer number (77028302095).

Almost surely, 2^154056604189 is an apocalyptic number.

It is an amenable number.

154056604189 is a deficient number, since it is larger than the sum of its proper divisors (1).

154056604189 is an equidigital number, since it uses as much as digits as its factorization.

154056604189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 154056604189 in words is "one hundred fifty-four billion, fifty-six million, six hundred four thousand, one hundred eighty-nine".