2045812039 has 4 divisors (see below), whose sum is σ = 2053591056. Its totient is φ = 2038033024.

The previous prime is 2045812001. The next prime is 2045812129. The reversal of 2045812039 is 9302185402.

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 2045812039 - 2⁹ = 2045811527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2045811995 and 2045812013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045815039) 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, 3889114 + ... + 3889639.

It is an arithmetic number, because the mean of its divisors is an integer number (513397764).

Almost surely, 2^2045812039 is an apocalyptic number.

2045812039 is a deficient number, since it is larger than the sum of its proper divisors (7779017).

2045812039 is an equidigital number, since it uses as much as digits as its factorization.

2045812039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779016.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2045812039 is about 45230.6537538426. The cubic root of 2045812039 is about 1269.4684445471.

The spelling of 2045812039 in words is "two billion, forty-five million, eight hundred twelve thousand, thirty-nine".