154208343361 has 2 divisors, whose sum is σ = 154208343362. Its totient is φ = 154208343360.

The previous prime is 154208343337. The next prime is 154208343403. The reversal of 154208343361 is 163343802451.

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., 96112400400 + 58095942961 = 310020^2 + 241031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154208343361 is a prime.

It is not a weakly prime, because it can be changed into another prime (154208343661) 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, 77104171680 + 77104171681.

It is an arithmetic number, because the mean of its divisors is an integer number (77104171681).

Almost surely, 2^154208343361 is an apocalyptic number.

It is an amenable number.

154208343361 is a deficient number, since it is larger than the sum of its proper divisors (1).

154208343361 is an equidigital number, since it uses as much as digits as its factorization.

154208343361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 154208343361 in words is "one hundred fifty-four billion, two hundred eight million, three hundred forty-three thousand, three hundred sixty-one".