30229273 has 2 divisors, whose sum is σ = 30229274. Its totient is φ = 30229272.

The previous prime is 30229253. The next prime is 30229289. The reversal of 30229273 is 37292203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15460624 + 14768649 = 3932^2 + 3843^2 .

It is a cyclic number.

It is not a de Polignac number, because 30229273 - 2²¹ = 28132121 is a prime.

It is a super-2 number, since 2×30229273² = 1827617892217058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30229253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15114636 + 15114637.

It is an arithmetic number, because the mean of its divisors is an integer number (15114637).

Almost surely, 2^30229273 is an apocalyptic number.

It is an amenable number.

30229273 is a deficient number, since it is larger than the sum of its proper divisors (1).

30229273 is an equidigital number, since it uses as much as digits as its factorization.

30229273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 30229273 is about 5498.1154043909. The cubic root of 30229273 is about 311.5128032065.

The spelling of 30229273 in words is "thirty million, two hundred twenty-nine thousand, two hundred seventy-three".