180154 has 16 divisors (see below), whose sum is σ = 299880. Its totient is φ = 81120.

The previous prime is 180137. The next prime is 180161. The reversal of 180154 is 451081.

It can be written as a sum of positive squares in 4 ways, for example, as 1225 + 178929 = 35^2 + 423^2 .

It is a Smith number, since the sum of its digits (19) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 13.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4374 + ... + 4414.

2¹⁸⁰¹⁵⁴ is an apocalyptic number.

180154 is a deficient number, since it is larger than the sum of its proper divisors (119726).

180154 is an equidigital number, since it uses as much as digits as its factorization.

180154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 180154 is about 424.4455206502. The cubic root of 180154 is about 56.4782593150.

The spelling of 180154 in words is "one hundred eighty thousand, one hundred fifty-four".