30343081 has 2 divisors, whose sum is σ = 30343082. Its totient is φ = 30343080.

The previous prime is 30343069. The next prime is 30343091. The reversal of 30343081 is 18034303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29333056 + 1010025 = 5416^2 + 1005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30343081 is a prime.

It is a super-2 number, since 2×30343081² = 1841405129145122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30343091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15171540 + 15171541.

It is an arithmetic number, because the mean of its divisors is an integer number (15171541).

Almost surely, 2^30343081 is an apocalyptic number.

It is an amenable number.

30343081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30343081 is an equidigital number, since it uses as much as digits as its factorization.

30343081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30343081 is about 5508.4554096407. The cubic root of 30343081 is about 311.9032442965.

Adding to 30343081 its reverse (18034303), we get a palindrome (48377384).

The spelling of 30343081 in words is "thirty million, three hundred forty-three thousand, eighty-one".