154557241 has 2 divisors, whose sum is σ = 154557242. Its totient is φ = 154557240.

The previous prime is 154557223. The next prime is 154557281. The reversal of 154557241 is 142755451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 52142841 = 10120^2 + 7221^2 .

It is a cyclic number.

It is not a de Polignac number, because 154557241 - 2²⁵ = 121002809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154557197 and 154557206.

It is not a weakly prime, because it can be changed into another prime (154557281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77278620 + 77278621.

It is an arithmetic number, because the mean of its divisors is an integer number (77278621).

Almost surely, 2^154557241 is an apocalyptic number.

It is an amenable number.

154557241 is a deficient number, since it is larger than the sum of its proper divisors (1).

154557241 is an equidigital number, since it uses as much as digits as its factorization.

154557241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 154557241 is about 12432.1052521285. The cubic root of 154557241 is about 536.6565720017.

The spelling of 154557241 in words is "one hundred fifty-four million, five hundred fifty-seven thousand, two hundred forty-one".