30191041 has 4 divisors (see below), whose sum is σ = 30287812. Its totient is φ = 30094272.

The previous prime is 30191027. The next prime is 30191053. The reversal of 30191041 is 14019103.

It is a happy number.

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 8288641 + 21902400 = 2879^2 + 4680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30191041 is a prime.

It is a super-2 number, since 2×30191041² = 1822997913327362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30191081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47916 + ... + 48541.

It is an arithmetic number, because the mean of its divisors is an integer number (7571953).

Almost surely, 2^30191041 is an apocalyptic number.

It is an amenable number.

30191041 is a deficient number, since it is larger than the sum of its proper divisors (96771).

30191041 is an equidigital number, since it uses as much as digits as its factorization.

30191041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96770.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 30191041 is about 5494.6374766676. The cubic root of 30191041 is about 311.3814208219.

The spelling of 30191041 in words is "thirty million, one hundred ninety-one thousand, forty-one".