2045176221 has 16 divisors (see below), whose sum is σ = 3055203648. Its totient is φ = 1206000000.

The previous prime is 2045176201. The next prime is 2045176223. The reversal of 2045176221 is 1226715402.

It is not a de Polignac number, because 2045176221 - 2⁶ = 2045176157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045176223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836280 + ... + 838721.

It is an arithmetic number, because the mean of its divisors is an integer number (190950228).

Almost surely, 2^2045176221 is an apocalyptic number.

It is an amenable number.

2045176221 is a deficient number, since it is larger than the sum of its proper divisors (1010027427).

2045176221 is a wasteful number, since it uses less digits than its factorization.

2045176221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675052.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2045176221 is about 45223.6245893670. The cubic root of 2045176221 is about 1269.3369182054.

The spelling of 2045176221 in words is "two billion, forty-five million, one hundred seventy-six thousand, two hundred twenty-one".