154550 has 24 divisors (see below), whose sum is σ = 314712. Its totient is φ = 56000.

The previous prime is 154543. The next prime is 154571. The reversal of 154550 is 55451.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 8.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410 + ... + 690.

It is an arithmetic number, because the mean of its divisors is an integer number (13113).

2¹⁵⁴⁵⁵⁰ is an apocalyptic number.

154550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154550 is an abundant number, since it is smaller than the sum of its proper divisors (160162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154550 is a wasteful number, since it uses less digits than its factorization.

154550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 154550 is about 393.1284777271. The cubic root of 154550 is about 53.6648191092.

Subtracting from 154550 its reverse (55451), we obtain a palindrome (99099).

The spelling of 154550 in words is "one hundred fifty-four thousand, five hundred fifty".