154316443406189 has 2 divisors, whose sum is σ = 154316443406190. Its totient is φ = 154316443406188.

The previous prime is 154316443406129. The next prime is 154316443406197. The reversal of 154316443406189 is 981604344613451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151787204838025 + 2529238568164 = 12320195^2 + 1590358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154316443406189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154316443406129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77158221703094 + 77158221703095.

It is an arithmetic number, because the mean of its divisors is an integer number (77158221703095).

Almost surely, 2^{154316443406189} is an apocalyptic number.

It is an amenable number.

154316443406189 is a deficient number, since it is larger than the sum of its proper divisors (1).

154316443406189 is an equidigital number, since it uses as much as digits as its factorization.

154316443406189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 154316443406189 in words is "one hundred fifty-four trillion, three hundred sixteen billion, four hundred forty-three million, four hundred six thousand, one hundred eighty-nine".