30381269 has 2 divisors, whose sum is σ = 30381270. Its totient is φ = 30381268.

The previous prime is 30381251. The next prime is 30381277. The reversal of 30381269 is 96218303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20584369 + 9796900 = 4537^2 + 3130^2 .

It is an emirp because it is prime and its reverse (96218303) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30381269 is a prime.

It is a super-2 number, since 2×30381269² = 1846043012100722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30381469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15190634 + 15190635.

It is an arithmetic number, because the mean of its divisors is an integer number (15190635).

Almost surely, 2^30381269 is an apocalyptic number.

It is an amenable number.

30381269 is a deficient number, since it is larger than the sum of its proper divisors (1).

30381269 is an equidigital number, since it uses as much as digits as its factorization.

30381269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30381269 is about 5511.9206271499. The cubic root of 30381269 is about 312.0340370767.

The spelling of 30381269 in words is "thirty million, three hundred eighty-one thousand, two hundred sixty-nine".