30502009 has 2 divisors, whose sum is σ = 30502010. Its totient is φ = 30502008.

The previous prime is 30501983. The next prime is 30502019. The reversal of 30502009 is 90020503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25280784 + 5221225 = 5028^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 30502009 - 2¹¹ = 30499961 is a prime.

It is not a weakly prime, because it can be changed into another prime (30502019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15251004 + 15251005.

It is an arithmetic number, because the mean of its divisors is an integer number (15251005).

Almost surely, 2^30502009 is an apocalyptic number.

It is an amenable number.

30502009 is a deficient number, since it is larger than the sum of its proper divisors (1).

30502009 is an equidigital number, since it uses as much as digits as its factorization.

30502009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 30502009 is about 5522.8623919124. The cubic root of 30502009 is about 312.4468483469.

The spelling of 30502009 in words is "thirty million, five hundred two thousand, nine".