30881141 has 2 divisors, whose sum is σ = 30881142. Its totient is φ = 30881140.

The previous prime is 30881119. The next prime is 30881167. The reversal of 30881141 is 14118803.

It is an a-pointer prime, because the next prime (30881167) can be obtained adding 30881141 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30846916 + 34225 = 5554^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 30881141 - 2¹⁸ = 30618997 is a prime.

It is a super-3 number, since 3×30881141³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30881141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30881941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15440570 + 15440571.

It is an arithmetic number, because the mean of its divisors is an integer number (15440571).

Almost surely, 2^30881141 is an apocalyptic number.

It is an amenable number.

30881141 is a deficient number, since it is larger than the sum of its proper divisors (1).

30881141 is an equidigital number, since it uses as much as digits as its factorization.

30881141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 30881141 is about 5557.0802585530. The cubic root of 30881141 is about 313.7360656870.

Adding to 30881141 its reverse (14118803), we get a palindrome (44999944).

The spelling of 30881141 in words is "thirty million, eight hundred eighty-one thousand, one hundred forty-one".