30433141 has 4 divisors (see below), whose sum is σ = 30446284. Its totient is φ = 30420000.

The previous prime is 30433099. The next prime is 30433147. The reversal of 30433141 is 14133403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14133403 = 509 ⋅27767.

It can be written as a sum of positive squares in 2 ways, for example, as 10595025 + 19838116 = 3255^2 + 4454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30433141 is a prime.

It is a super-2 number, since 2×30433141² = 1852352142251762, 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 (30433147) 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, 2070 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (7611571).

Almost surely, 2^30433141 is an apocalyptic number.

It is an amenable number.

30433141 is a deficient number, since it is larger than the sum of its proper divisors (13143).

30433141 is a wasteful number, since it uses less digits than its factorization.

30433141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30433141 is about 5516.6240582443. The cubic root of 30433141 is about 312.2115217255.

Adding to 30433141 its reverse (14133403), we get a palindrome (44566544).

The spelling of 30433141 in words is "thirty million, four hundred thirty-three thousand, one hundred forty-one".