2045157005 has 4 divisors (see below), whose sum is σ = 2454188412. Its totient is φ = 1636125600.

The previous prime is 2045156947. The next prime is 2045157011. The reversal of 2045157005 is 5007515402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 930799081 + 1114357924 = 30509^2 + 33382^2 .

It is not a de Polignac number, because 2045157005 - 2¹⁴ = 2045140621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204515696 + ... + 204515705.

It is an arithmetic number, because the mean of its divisors is an integer number (613547103).

Almost surely, 2^2045157005 is an apocalyptic number.

It is an amenable number.

2045157005 is a deficient number, since it is larger than the sum of its proper divisors (409031407).

2045157005 is an equidigital number, since it uses as much as digits as its factorization.

2045157005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409031406.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 2045157005 is about 45223.4121335399. The cubic root of 2045157005 is about 1269.3329427281.

The spelling of 2045157005 in words is "two billion, forty-five million, one hundred fifty-seven thousand, five".