30134681 has 2 divisors, whose sum is σ = 30134682. Its totient is φ = 30134680.

The previous prime is 30134653. The next prime is 30134707. The reversal of 30134681 is 18643103.

It is an a-pointer prime, because the next prime (30134707) can be obtained adding 30134681 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28944400 + 1190281 = 5380^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 30134681 - 2¹⁸ = 29872537 is a prime.

It is a super-2 number, since 2×30134681² = 1816197997943522, which contains 22 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 30134681.

It is not a weakly prime, because it can be changed into another prime (30134641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067340 + 15067341.

It is an arithmetic number, because the mean of its divisors is an integer number (15067341).

Almost surely, 2^30134681 is an apocalyptic number.

It is an amenable number.

30134681 is a deficient number, since it is larger than the sum of its proper divisors (1).

30134681 is an equidigital number, since it uses as much as digits as its factorization.

30134681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30134681 is about 5489.5064441168. The cubic root of 30134681 is about 311.1875400331.

Adding to 30134681 its reverse (18643103), we get a palindrome (48777784).

The spelling of 30134681 in words is "thirty million, one hundred thirty-four thousand, six hundred eighty-one".