30481 has 8 divisors (see below), whose sum is σ = 35424. Its totient is φ = 25920.

The previous prime is 30469. The next prime is 30491. The reversal of 30481 is 18403.

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

It is a 4-Lehmer number, since φ(30481) divides (30481-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 30481 - 2⁵ = 30449 is a prime.

It is a super-2 number, since 2×30481² = 1858182722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (30431) 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, 106 + ... + 268.

It is an arithmetic number, because the mean of its divisors is an integer number (4428).

2³⁰⁴⁸¹ is an apocalyptic number.

It is an amenable number.

30481 is a deficient number, since it is larger than the sum of its proper divisors (4943).

30481 is a wasteful number, since it uses less digits than its factorization.

30481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30481 is about 174.5880866497. The cubic root of 30481 is about 31.2375096751.

Adding to 30481 its reverse (18403), we get a palindrome (48884).

The spelling of 30481 in words is "thirty thousand, four hundred eighty-one".