180481 has 16 divisors (see below), whose sum is σ = 230400. Its totient is φ = 137808.

The previous prime is 180473. The next prime is 180491. The reversal of 180481 is 184081.

It is a cyclic number.

It is not a de Polignac number, because 180481 - 2³ = 180473 is a prime.

It is a super-2 number, since 2×180481² = 65146782722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (180491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3030 + ... + 3088.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

2¹⁸⁰⁴⁸¹ is an apocalyptic number.

It is an amenable number.

180481 is a deficient number, since it is larger than the sum of its proper divisors (49919).

180481 is a wasteful number, since it uses less digits than its factorization.

180481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 180481 is about 424.8305544567. The cubic root of 180481 is about 56.5124101489.

Subtracting 180481 from its reverse (184081), we obtain a square (3600 = 60²).

The spelling of 180481 in words is "one hundred eighty thousand, four hundred eighty-one".