30146447 has 2 divisors, whose sum is σ = 30146448. Its totient is φ = 30146446.

The previous prime is 30146443. The next prime is 30146471. The reversal of 30146447 is 74464103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30146447 - 2² = 30146443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30146443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15073223 + 15073224.

It is an arithmetic number, because the mean of its divisors is an integer number (15073224).

Almost surely, 2^30146447 is an apocalyptic number.

30146447 is a deficient number, since it is larger than the sum of its proper divisors (1).

30146447 is an equidigital number, since it uses as much as digits as its factorization.

30146447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30146447 is about 5490.5780205731. The cubic root of 30146447 is about 311.2280355247.

The spelling of 30146447 in words is "thirty million, one hundred forty-six thousand, four hundred forty-seven".