30445141 has 4 divisors (see below), whose sum is σ = 30492000. Its totient is φ = 30398284.

The previous prime is 30445133. The next prime is 30445153. The reversal of 30445141 is 14154403.

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: 14154403 = 773 ⋅18311.

It is a cyclic number.

It is not a de Polignac number, because 30445141 - 2³ = 30445133 is a prime.

It is a super-2 number, since 2×30445141² = 1853813221019762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30445111) 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, 22441 + ... + 23758.

It is an arithmetic number, because the mean of its divisors is an integer number (7623000).

Almost surely, 2^30445141 is an apocalyptic number.

It is an amenable number.

30445141 is a deficient number, since it is larger than the sum of its proper divisors (46859).

30445141 is an equidigital number, since it uses as much as digits as its factorization.

30445141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46858.

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

The square root of 30445141 is about 5517.7115727446. The cubic root of 30445141 is about 312.2525520608.

Adding to 30445141 its reverse (14154403), we get a palindrome (44599544).

The spelling of 30445141 in words is "thirty million, four hundred forty-five thousand, one hundred forty-one".