2145045306 has 16 divisors (see below), whose sum is σ = 4290570144. Its totient is φ = 714935184.

The previous prime is 2145045283. The next prime is 2145045307. The reversal of 2145045306 is 6035405412.

It is not an unprimeable number, because it can be changed into a prime (2145045307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67920 + ... + 94356.

It is an arithmetic number, because the mean of its divisors is an integer number (268160634).

Almost surely, 2^2145045306 is an apocalyptic number.

2145045306 is an abundant number, since it is smaller than the sum of its proper divisors (2145524838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145045306 is a wasteful number, since it uses less digits than its factorization.

2145045306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39965.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2145045306 is about 46314.6338212881. The cubic root of 2145045306 is about 1289.6706700924.

The spelling of 2145045306 in words is "two billion, one hundred forty-five million, forty-five thousand, three hundred six".