30662161 has 2 divisors, whose sum is σ = 30662162. Its totient is φ = 30662160.

The previous prime is 30662153. The next prime is 30662167. The reversal of 30662161 is 16126603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29495761 + 1166400 = 5431^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 30662161 - 2³ = 30662153 is a prime.

It is not a weakly prime, because it can be changed into another prime (30662167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15331080 + 15331081.

It is an arithmetic number, because the mean of its divisors is an integer number (15331081).

Almost surely, 2^30662161 is an apocalyptic number.

It is an amenable number.

30662161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30662161 is an equidigital number, since it uses as much as digits as its factorization.

30662161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 30662161 is about 5537.3424131076. The cubic root of 30662161 is about 312.9927322262.

Adding to 30662161 its reverse (16126603), we get a palindrome (46788764).

The spelling of 30662161 in words is "thirty million, six hundred sixty-two thousand, one hundred sixty-one".