30180481 has 4 divisors (see below), whose sum is σ = 30201264. Its totient is φ = 30159700.

The previous prime is 30180461. The next prime is 30180487. The reversal of 30180481 is 18408103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18408103 = 7 ⋅2629729.

It is a cyclic number.

It is not a de Polignac number, because 30180481 - 2¹¹ = 30178433 is a prime.

It is a super-2 number, since 2×30180481² = 1821722866782722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30180487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8035 + ... + 11176.

It is an arithmetic number, because the mean of its divisors is an integer number (7550316).

Almost surely, 2^30180481 is an apocalyptic number.

It is an amenable number.

30180481 is a deficient number, since it is larger than the sum of its proper divisors (20783).

30180481 is a wasteful number, since it uses less digits than its factorization.

30180481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20782.

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

The square root of 30180481 is about 5493.6764557080. The cubic root of 30180481 is about 311.3451123549.

Adding to 30180481 its reverse (18408103), we get a palindrome (48588584).

The spelling of 30180481 in words is "thirty million, one hundred eighty thousand, four hundred eighty-one".