30141971 has 2 divisors, whose sum is σ = 30141972. Its totient is φ = 30141970.

The previous prime is 30141931. The next prime is 30141973. The reversal of 30141971 is 17914103.

It is a strong prime.

It is an emirp because it is prime and its reverse (17914103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30141971 - 2¹⁴ = 30125587 is a prime.

Together with 30141973, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30141971.

It is not a weakly prime, because it can be changed into another prime (30141973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15070985 + 15070986.

It is an arithmetic number, because the mean of its divisors is an integer number (15070986).

Almost surely, 2^30141971 is an apocalyptic number.

30141971 is a deficient number, since it is larger than the sum of its proper divisors (1).

30141971 is an equidigital number, since it uses as much as digits as its factorization.

30141971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 30141971 is about 5490.1703980842. The cubic root of 30141971 is about 311.2126315465.

The spelling of 30141971 in words is "thirty million, one hundred forty-one thousand, nine hundred seventy-one".