30754481 has 4 divisors (see below), whose sum is σ = 30797172. Its totient is φ = 30711792.

The previous prime is 30754433. The next prime is 30754487. The reversal of 30754481 is 18445703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18445703 = 67 ⋅275309.

It can be written as a sum of positive squares in 2 ways, for example, as 25090081 + 5664400 = 5009^2 + 2380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30754481 is a prime.

It is a super-2 number, since 2×30754481² = 1891676203158722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30754487) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20246 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (7699293).

Almost surely, 2^30754481 is an apocalyptic number.

It is an amenable number.

30754481 is a deficient number, since it is larger than the sum of its proper divisors (42691).

30754481 is an equidigital number, since it uses as much as digits as its factorization.

30754481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42690.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 30754481 is about 5545.6722766496. The cubic root of 30754481 is about 313.3065450414.

The spelling of 30754481 in words is "thirty million, seven hundred fifty-four thousand, four hundred eighty-one".