154559 has 4 divisors (see below), whose sum is σ = 155904. Its totient is φ = 153216.

The previous prime is 154543. The next prime is 154571. The reversal of 154559 is 955451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154559 - 2⁴ = 154543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154579) 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 in 3 ways as a sum of consecutive naturals, for example, 482 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (38976).

2¹⁵⁴⁵⁵⁹ is an apocalyptic number.

154559 is a deficient number, since it is larger than the sum of its proper divisors (1345).

154559 is a wasteful number, since it uses less digits than its factorization.

154559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344.

The product of its digits is 4500, while the sum is 29.

The square root of 154559 is about 393.1399242000. The cubic root of 154559 is about 53.6658607872.

The spelling of 154559 in words is "one hundred fifty-four thousand, five hundred fifty-nine".