30271824145 has 32 divisors (see below), whose sum is σ = 37896660000. Its totient is φ = 23185182720.

The previous prime is 30271824139. The next prime is 30271824161. The reversal of 30271824145 is 54142817203.

It is a Cunningham number, because it is equal to 173988²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 14397840081 + 15873984064 = 119991^2 + 125992^2 .

It is not a de Polignac number, because 30271824145 - 2²³ = 30263435537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20329561 + ... + 20331049.

It is an arithmetic number, because the mean of its divisors is an integer number (1184270625).

Almost surely, 2^30271824145 is an apocalyptic number.

It is an amenable number.

30271824145 is a deficient number, since it is larger than the sum of its proper divisors (7624835855).

30271824145 is a wasteful number, since it uses less digits than its factorization.

30271824145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613.

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 30271824145 in words is "thirty billion, two hundred seventy-one million, eight hundred twenty-four thousand, one hundred forty-five".