30136273 has 2 divisors, whose sum is σ = 30136274. Its totient is φ = 30136272.

The previous prime is 30136243. The next prime is 30136283. The reversal of 30136273 is 37263103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20358144 + 9778129 = 4512^2 + 3127^2 .

It is an emirp because it is prime and its reverse (37263103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30136273 - 2⁹ = 30135761 is a prime.

It is not a weakly prime, because it can be changed into another prime (30136213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15068136 + 15068137.

It is an arithmetic number, because the mean of its divisors is an integer number (15068137).

Almost surely, 2^30136273 is an apocalyptic number.

It is an amenable number.

30136273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30136273 is an equidigital number, since it uses as much as digits as its factorization.

30136273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 30136273 is about 5489.6514461303. The cubic root of 30136273 is about 311.1930198968.

Adding to 30136273 its reverse (37263103), we get a palindrome (67399376).

The spelling of 30136273 in words is "thirty million, one hundred thirty-six thousand, two hundred seventy-three".