2045031985 has 16 divisors (see below), whose sum is σ = 2467486656. Its totient is φ = 1627086528.

The previous prime is 2045031973. The next prime is 2045031991. The reversal of 2045031985 is 5891305402.

It is a cyclic number.

It is not a de Polignac number, because 2045031985 - 2⁵ = 2045031953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 827722 + ... + 830188.

It is an arithmetic number, because the mean of its divisors is an integer number (154217916).

Almost surely, 2^2045031985 is an apocalyptic number.

It is an amenable number.

2045031985 is a deficient number, since it is larger than the sum of its proper divisors (422454671).

2045031985 is a wasteful number, since it uses less digits than its factorization.

2045031985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 2045031985 is about 45222.0298637733. The cubic root of 2045031985 is about 1269.3070775194.

The spelling of 2045031985 in words is "two billion, forty-five million, thirty-one thousand, nine hundred eighty-five".