30409061 has 2 divisors, whose sum is σ = 30409062. Its totient is φ = 30409060.

The previous prime is 30409037. The next prime is 30409097. The reversal of 30409061 is 16090403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 93025 = 5506^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 30409061 - 2⁶ = 30408997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30409031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15204530 + 15204531.

It is an arithmetic number, because the mean of its divisors is an integer number (15204531).

Almost surely, 2^30409061 is an apocalyptic number.

It is an amenable number.

30409061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30409061 is an equidigital number, since it uses as much as digits as its factorization.

30409061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 30409061 is about 5514.4411321547. The cubic root of 30409061 is about 312.1291549708.

Adding to 30409061 its reverse (16090403), we get a palindrome (46499464).

The spelling of 30409061 in words is "thirty million, four hundred nine thousand, sixty-one".