154745161 has 2 divisors, whose sum is σ = 154745162. Its totient is φ = 154745160.

The previous prime is 154745159. The next prime is 154745257. The reversal of 154745161 is 161547451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142945936 + 11799225 = 11956^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 154745161 - 2¹ = 154745159 is a prime.

Together with 154745159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (154745561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77372580 + 77372581.

It is an arithmetic number, because the mean of its divisors is an integer number (77372581).

Almost surely, 2^154745161 is an apocalyptic number.

It is an amenable number.

154745161 is a deficient number, since it is larger than the sum of its proper divisors (1).

154745161 is an equidigital number, since it uses as much as digits as its factorization.

154745161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 34.

The square root of 154745161 is about 12439.6608072728. The cubic root of 154745161 is about 536.8739837028.

The spelling of 154745161 in words is "one hundred fifty-four million, seven hundred forty-five thousand, one hundred sixty-one".