154544055361 has 2 divisors, whose sum is σ = 154544055362. Its totient is φ = 154544055360.

The previous prime is 154544055359. The next prime is 154544055383. The reversal of 154544055361 is 163550445451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97621253136 + 56922802225 = 312444^2 + 238585^2 .

It is a cyclic number.

It is not a de Polignac number, because 154544055361 - 2¹ = 154544055359 is a prime.

Together with 154544055359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (154544055461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77272027680 + 77272027681.

It is an arithmetic number, because the mean of its divisors is an integer number (77272027681).

Almost surely, 2^154544055361 is an apocalyptic number.

It is an amenable number.

154544055361 is a deficient number, since it is larger than the sum of its proper divisors (1).

154544055361 is an equidigital number, since it uses as much as digits as its factorization.

154544055361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 154544055361 in words is "one hundred fifty-four billion, five hundred forty-four million, fifty-five thousand, three hundred sixty-one".