154306320109 has 2 divisors, whose sum is σ = 154306320110. Its totient is φ = 154306320108.

The previous prime is 154306320107. The next prime is 154306320127. The reversal of 154306320109 is 901023603451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85948648900 + 68357671209 = 293170^2 + 261453^2 .

It is a cyclic number.

It is not a de Polignac number, because 154306320109 - 2¹ = 154306320107 is a prime.

Together with 154306320107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154306320101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77153160054 + 77153160055.

It is an arithmetic number, because the mean of its divisors is an integer number (77153160055).

Almost surely, 2^154306320109 is an apocalyptic number.

It is an amenable number.

154306320109 is a deficient number, since it is larger than the sum of its proper divisors (1).

154306320109 is an equidigital number, since it uses as much as digits as its factorization.

154306320109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 154306320109 in words is "one hundred fifty-four billion, three hundred six million, three hundred twenty thousand, one hundred nine".