154540055030209 has 2 divisors, whose sum is σ = 154540055030210. Its totient is φ = 154540055030208.

The previous prime is 154540055030129. The next prime is 154540055030243. The reversal of 154540055030209 is 902030550045451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152391544021809 + 2148511008400 = 12344697^2 + 1465780^2 .

It is a cyclic number.

It is not a de Polignac number, because 154540055030209 - 2³⁵ = 154505695291841 is a prime.

It is not a weakly prime, because it can be changed into another prime (154540055030279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77270027515104 + 77270027515105.

It is an arithmetic number, because the mean of its divisors is an integer number (77270027515105).

Almost surely, 2^{154540055030209} is an apocalyptic number.

It is an amenable number.

154540055030209 is a deficient number, since it is larger than the sum of its proper divisors (1).

154540055030209 is an equidigital number, since it uses as much as digits as its factorization.

154540055030209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 154540055030209 in words is "one hundred fifty-four trillion, five hundred forty billion, fifty-five million, thirty thousand, two hundred nine".