154849 has 2 divisors, whose sum is σ = 154850. Its totient is φ = 154848.

The previous prime is 154841. The next prime is 154871. The reversal of 154849 is 948451.

It is a happy number.

154849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154449 + 400 = 393^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 154849 - 2³ = 154841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154849.

It is not a weakly prime, because it can be changed into another prime (154841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77424 + 77425.

It is an arithmetic number, because the mean of its divisors is an integer number (77425).

2¹⁵⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

154849 is a deficient number, since it is larger than the sum of its proper divisors (1).

154849 is an equidigital number, since it uses as much as digits as its factorization.

154849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 31.

The square root of 154849 is about 393.5085767807. The cubic root of 154849 is about 53.6994043445.

The spelling of 154849 in words is "one hundred fifty-four thousand, eight hundred forty-nine".