154980 has 96 divisors (see below), whose sum is σ = 564480. Its totient is φ = 34560.

The previous prime is 154943. The next prime is 154981. The reversal of 154980 is 89451.

154980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154981) by changing a digit.

154980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3760 + ... + 3800.

It is an arithmetic number, because the mean of its divisors is an integer number (5880).

2¹⁵⁴⁹⁸⁰ is an apocalyptic number.

154980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282240).

154980 is an abundant number, since it is smaller than the sum of its proper divisors (409500).

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

154980 is a wasteful number, since it uses less digits than its factorization.

154980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 154980 is about 393.6749928558. The cubic root of 154980 is about 53.7145430478.

The spelling of 154980 in words is "one hundred fifty-four thousand, nine hundred eighty".