30075641 has 4 divisors (see below), whose sum is σ = 30086784. Its totient is φ = 30064500.

The previous prime is 30075637. The next prime is 30075649. The reversal of 30075641 is 14657003.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 30075641 - 2² = 30075637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30075641.

It is not an unprimeable number, because it can be changed into a prime (30075649) 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, 1316 + ... + 7866.

It is an arithmetic number, because the mean of its divisors is an integer number (7521696).

Almost surely, 2^30075641 is an apocalyptic number.

It is an amenable number.

30075641 is a deficient number, since it is larger than the sum of its proper divisors (11143).

30075641 is an equidigital number, since it uses as much as digits as its factorization.

30075641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30075641 is about 5484.1262749867. The cubic root of 30075641 is about 310.9841805003.

The spelling of 30075641 in words is "thirty million, seventy-five thousand, six hundred forty-one".