30762161 has 2 divisors, whose sum is σ = 30762162. Its totient is φ = 30762160.

The previous prime is 30762143. The next prime is 30762167. The reversal of 30762161 is 16126703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 1168561 = 5440^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 30762161 - 2⁶ = 30762097 is a prime.

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 30762161.

It is not a weakly prime, because it can be changed into another prime (30762167) 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, 15381080 + 15381081.

It is an arithmetic number, because the mean of its divisors is an integer number (15381081).

Almost surely, 2^30762161 is an apocalyptic number.

It is an amenable number.

30762161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30762161 is an equidigital number, since it uses as much as digits as its factorization.

30762161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 30762161 is about 5546.3646652560. The cubic root of 30762161 is about 313.3326224771.

Adding to 30762161 its reverse (16126703), we get a palindrome (46888864).

The spelling of 30762161 in words is "thirty million, seven hundred sixty-two thousand, one hundred sixty-one".