30157256147 has 2 divisors, whose sum is σ = 30157256148. Its totient is φ = 30157256146.

The previous prime is 30157256123. The next prime is 30157256161. The reversal of 30157256147 is 74165275103.

It is a strong prime.

It is an emirp because it is prime and its reverse (74165275103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30157256147 - 2¹⁰ = 30157255123 is a prime.

It is not a weakly prime, because it can be changed into another prime (30157226147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15078628073 + 15078628074.

It is an arithmetic number, because the mean of its divisors is an integer number (15078628074).

Almost surely, 2^30157256147 is an apocalyptic number.

30157256147 is a deficient number, since it is larger than the sum of its proper divisors (1).

30157256147 is an equidigital number, since it uses as much as digits as its factorization.

30157256147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 30157256147 in words is "thirty billion, one hundred fifty-seven million, two hundred fifty-six thousand, one hundred forty-seven".