30162061 has 2 divisors, whose sum is σ = 30162062. Its totient is φ = 30162060.

The previous prime is 30162043. The next prime is 30162113. The reversal of 30162061 is 16026103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27237961 + 2924100 = 5219^2 + 1710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30162061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30162161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15081030 + 15081031.

It is an arithmetic number, because the mean of its divisors is an integer number (15081031).

Almost surely, 2^30162061 is an apocalyptic number.

It is an amenable number.

30162061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30162061 is an equidigital number, since it uses as much as digits as its factorization.

30162061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 30162061 is about 5491.9997268754. Note that the first 3 decimals coincide. The cubic root of 30162061 is about 311.2817585589.

Adding to 30162061 its reverse (16026103), we get a palindrome (46188164).

The spelling of 30162061 in words is "thirty million, one hundred sixty-two thousand, sixty-one".