154806163397 has 2 divisors, whose sum is σ = 154806163398. Its totient is φ = 154806163396.

The previous prime is 154806163331. The next prime is 154806163423. The reversal of 154806163397 is 793361608451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122220859201 + 32585304196 = 349601^2 + 180514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154806163397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154806163307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77403081698 + 77403081699.

It is an arithmetic number, because the mean of its divisors is an integer number (77403081699).

Almost surely, 2^154806163397 is an apocalyptic number.

It is an amenable number.

154806163397 is a deficient number, since it is larger than the sum of its proper divisors (1).

154806163397 is an equidigital number, since it uses as much as digits as its factorization.

154806163397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 154806163397 in words is "one hundred fifty-four billion, eight hundred six million, one hundred sixty-three thousand, three hundred ninety-seven".