2045131015 has 4 divisors (see below), whose sum is σ = 2454157224. Its totient is φ = 1636104808.

The previous prime is 2045131013. The next prime is 2045131019. The reversal of 2045131015 is 5101315402.

It is a happy number.

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 2045131015 - 2¹ = 2045131013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045131013) 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, 204513097 + ... + 204513106.

It is an arithmetic number, because the mean of its divisors is an integer number (613539306).

Almost surely, 2^2045131015 is an apocalyptic number.

2045131015 is a deficient number, since it is larger than the sum of its proper divisors (409026209).

2045131015 is an equidigital number, since it uses as much as digits as its factorization.

2045131015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409026208.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2045131015 is about 45223.1247814655. The cubic root of 2045131015 is about 1269.3275657811.

Adding to 2045131015 its reverse (5101315402), we get a palindrome (7146446417).

The spelling of 2045131015 in words is "two billion, forty-five million, one hundred thirty-one thousand, fifteen".