2808941137 has 4 divisors (see below), whose sum is σ = 2817427696. Its totient is φ = 2800454580.

The previous prime is 2808941129. The next prime is 2808941147. The reversal of 2808941137 is 7311498082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2808941137 - 2³ = 2808941129 is a prime.

It is a super-2 number, since 2×2808941137² = 15780300622261705538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2808941093 and 2808941102.

It is not an unprimeable number, because it can be changed into a prime (2808941147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242783 + ... + 4243444.

It is an arithmetic number, because the mean of its divisors is an integer number (704356924).

Almost surely, 2^2808941137 is an apocalyptic number.

It is an amenable number.

2808941137 is a deficient number, since it is larger than the sum of its proper divisors (8486559).

2808941137 is an equidigital number, since it uses as much as digits as its factorization.

2808941137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486558.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 2808941137 is about 52999.4446857701. Note that the first 3 decimals coincide. The cubic root of 2808941137 is about 1410.9584109864.

The spelling of 2808941137 in words is "two billion, eight hundred eight million, nine hundred forty-one thousand, one hundred thirty-seven".