2908145971 has 4 divisors (see below), whose sum is σ = 2911141944. Its totient is φ = 2905150000.

The previous prime is 2908145941. The next prime is 2908145983. The reversal of 2908145971 is 1795418092.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2908145971 - 2⁷ = 2908145843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2908145941) 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 in 3 ways as a sum of consecutive naturals, for example, 1496530 + ... + 1498471.

It is an arithmetic number, because the mean of its divisors is an integer number (727785486).

Almost surely, 2^2908145971 is an apocalyptic number.

2908145971 is a deficient number, since it is larger than the sum of its proper divisors (2995973).

2908145971 is an equidigital number, since it uses as much as digits as its factorization.

2908145971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995972.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 2908145971 is about 53927.2284750477. The cubic root of 2908145971 is about 1427.3771294773.

The spelling of 2908145971 in words is "two billion, nine hundred eight million, one hundred forty-five thousand, nine hundred seventy-one".