183481 has 8 divisors (see below), whose sum is σ = 199584. Its totient is φ = 168000.

The previous prime is 183479. The next prime is 183487. The reversal of 183481 is 184381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 183481 - 2¹ = 183479 is a prime.

It is a super-2 number, since 2×183481² = 67330554722, which contains 22 as substring.

It is a Duffinian number.

183481 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606 + ... + 856.

It is an arithmetic number, because the mean of its divisors is an integer number (24948).

2¹⁸³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

183481 is a deficient number, since it is larger than the sum of its proper divisors (16103).

183481 is a wasteful number, since it uses less digits than its factorization.

183481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 768, while the sum is 25.

The square root of 183481 is about 428.3468220963. The cubic root of 183481 is about 56.8238121742.

Subtracting 183481 from its reverse (184381), we obtain a square (900 = 30²).

The spelling of 183481 in words is "one hundred eighty-three thousand, four hundred eighty-one".