30273149 has 2 divisors, whose sum is σ = 30273150. Its totient is φ = 30273148.

The previous prime is 30273127. The next prime is 30273151. The reversal of 30273149 is 94137203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24304900 + 5968249 = 4930^2 + 2443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30273149 is a prime.

Together with 30273151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30273109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15136574 + 15136575.

It is an arithmetic number, because the mean of its divisors is an integer number (15136575).

Almost surely, 2^30273149 is an apocalyptic number.

It is an amenable number.

30273149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30273149 is an equidigital number, since it uses as much as digits as its factorization.

30273149 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 29.

The square root of 30273149 is about 5502.1040520877. The cubic root of 30273149 is about 311.6634444779.

The spelling of 30273149 in words is "thirty million, two hundred seventy-three thousand, one hundred forty-nine".