30124949 has 2 divisors, whose sum is σ = 30124950. Its totient is φ = 30124948.

The previous prime is 30124921. The next prime is 30124957. The reversal of 30124949 is 94942103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19201924 + 10923025 = 4382^2 + 3305^2 .

It is a cyclic number.

It is not a de Polignac number, because 30124949 - 2⁸ = 30124693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30124909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15062474 + 15062475.

It is an arithmetic number, because the mean of its divisors is an integer number (15062475).

Almost surely, 2^30124949 is an apocalyptic number.

It is an amenable number.

30124949 is a deficient number, since it is larger than the sum of its proper divisors (1).

30124949 is an equidigital number, since it uses as much as digits as its factorization.

30124949 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 30124949 is about 5488.6199540504. The cubic root of 30124949 is about 311.1540370711.

The spelling of 30124949 in words is "thirty million, one hundred twenty-four thousand, nine hundred forty-nine".