2045133651 has 12 divisors (see below), whose sum is σ = 2997276296. Its totient is φ = 1239474720.

The previous prime is 2045133613. The next prime is 2045133667. The reversal of 2045133651 is 1563315402.

It is not a de Polignac number, because 2045133651 - 2¹⁴ = 2045117267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045133851) 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 11 ways as a sum of consecutive naturals, for example, 2816626 + ... + 2817351.

Almost surely, 2^2045133651 is an apocalyptic number.

2045133651 is a deficient number, since it is larger than the sum of its proper divisors (952142645).

2045133651 is a wasteful number, since it uses less digits than its factorization.

2045133651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634002 (or 5633991 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2045133651 is about 45223.1539258376. The cubic root of 2045133651 is about 1269.3281111326.

The spelling of 2045133651 in words is "two billion, forty-five million, one hundred thirty-three thousand, six hundred fifty-one".