30145441 has 4 divisors (see below), whose sum is σ = 30195712. Its totient is φ = 30095172.

The previous prime is 30145439. The next prime is 30145447. The reversal of 30145441 is 14454103.

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: 14454103 = 521 ⋅27743.

It is a cyclic number.

It is not a de Polignac number, because 30145441 - 2¹ = 30145439 is a prime.

It is a super-2 number, since 2×30145441² = 1817495226168962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30145447) 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, 24225 + ... + 25438.

It is an arithmetic number, because the mean of its divisors is an integer number (7548928).

Almost surely, 2^30145441 is an apocalyptic number.

It is an amenable number.

30145441 is a deficient number, since it is larger than the sum of its proper divisors (50271).

30145441 is an equidigital number, since it uses as much as digits as its factorization.

30145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50270.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 30145441 is about 5490.4864083249. The cubic root of 30145441 is about 311.2245735481.

Adding to 30145441 its reverse (14454103), we get a palindrome (44599544).

The spelling of 30145441 in words is "thirty million, one hundred forty-five thousand, four hundred forty-one".