30502061 has 2 divisors, whose sum is σ = 30502062. Its totient is φ = 30502060.

The previous prime is 30502051. The next prime is 30502067. The reversal of 30502061 is 16020503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 8702500 = 4669^2 + 2950^2 .

It is an emirp because it is prime and its reverse (16020503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30502061 - 2¹⁴ = 30485677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30502067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15251030 + 15251031.

It is an arithmetic number, because the mean of its divisors is an integer number (15251031).

Almost surely, 2^30502061 is an apocalyptic number.

It is an amenable number.

30502061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30502061 is an equidigital number, since it uses as much as digits as its factorization.

30502061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30502061 is about 5522.8670996141. The cubic root of 30502061 is about 312.4470259005.

Adding to 30502061 its reverse (16020503), we get a palindrome (46522564).

The spelling of 30502061 in words is "thirty million, five hundred two thousand, sixty-one".