2045155081 has 16 divisors (see below), whose sum is σ = 2164780800. Its totient is φ = 1929328128.

The previous prime is 2045155067. The next prime is 2045155127. The reversal of 2045155081 is 1805515402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2045155081 is a prime.

It is a super-2 number, since 2×2045155081² = 8365318610680233122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045155001) 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 15 ways as a sum of consecutive naturals, for example, 217626 + ... + 226828.

It is an arithmetic number, because the mean of its divisors is an integer number (135298800).

Almost surely, 2^2045155081 is an apocalyptic number.

It is an amenable number.

2045155081 is a deficient number, since it is larger than the sum of its proper divisors (119625719).

2045155081 is an equidigital number, since it uses as much as digits as its factorization.

2045155081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 2045155081 is about 45223.3908613673. The cubic root of 2045155081 is about 1269.3325446825.

The spelling of 2045155081 in words is "two billion, forty-five million, one hundred fifty-five thousand, eighty-one".