30124387 has 2 divisors, whose sum is σ = 30124388. Its totient is φ = 30124386.

The previous prime is 30124379. The next prime is 30124403. The reversal of 30124387 is 78342103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30124387 - 2³ = 30124379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30124487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15062193 + 15062194.

It is an arithmetic number, because the mean of its divisors is an integer number (15062194).

Almost surely, 2^30124387 is an apocalyptic number.

30124387 is a deficient number, since it is larger than the sum of its proper divisors (1).

30124387 is an equidigital number, since it uses as much as digits as its factorization.

30124387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30124387 is about 5488.5687569712. The cubic root of 30124387 is about 311.1521021339.

The spelling of 30124387 in words is "thirty million, one hundred twenty-four thousand, three hundred eighty-seven".