154888081 has 2 divisors, whose sum is σ = 154888082. Its totient is φ = 154888080.

The previous prime is 154888073. The next prime is 154888087. The reversal of 154888081 is 180888451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154157056 + 731025 = 12416^2 + 855^2 .

It is an emirp because it is prime and its reverse (180888451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154888081 - 2³ = 154888073 is a prime.

It is a super-2 number, since 2×154888081² = 47980635271725122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154888087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77444040 + 77444041.

It is an arithmetic number, because the mean of its divisors is an integer number (77444041).

Almost surely, 2^154888081 is an apocalyptic number.

It is an amenable number.

154888081 is a deficient number, since it is larger than the sum of its proper divisors (1).

154888081 is an equidigital number, since it uses as much as digits as its factorization.

154888081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81920, while the sum is 43.

The square root of 154888081 is about 12445.4040111199. The cubic root of 154888081 is about 537.0392154063.

The spelling of 154888081 in words is "one hundred fifty-four million, eight hundred eighty-eight thousand, eighty-one".