30432145 has 4 divisors (see below), whose sum is σ = 36518580. Its totient is φ = 24345712.

The previous prime is 30432133. The next prime is 30432161. The reversal of 30432145 is 54123403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3682561 + 26749584 = 1919^2 + 5172^2 .

It is a cyclic number.

It is not a de Polignac number, because 30432145 - 2⁵ = 30432113 is a prime.

It is a super-2 number, since 2×30432145² = 1852230898602050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043210 + ... + 3043219.

It is an arithmetic number, because the mean of its divisors is an integer number (9129645).

Almost surely, 2^30432145 is an apocalyptic number.

It is an amenable number.

30432145 is a deficient number, since it is larger than the sum of its proper divisors (6086435).

30432145 is an equidigital number, since it uses as much as digits as its factorization.

30432145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086434.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30432145 is about 5516.5337849052. The cubic root of 30432145 is about 312.2081157230.

Adding to 30432145 its reverse (54123403), we get a palindrome (84555548).

The spelling of 30432145 in words is "thirty million, four hundred thirty-two thousand, one hundred forty-five".