2145454206 has 32 divisors (see below), whose sum is σ = 4936386048. Its totient is φ = 608925600.

The previous prime is 2145454189. The next prime is 2145454211. The reversal of 2145454206 is 6024545412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162805 + ... + 175488.

It is an arithmetic number, because the mean of its divisors is an integer number (154262064).

Almost surely, 2^2145454206 is an apocalyptic number.

2145454206 is an abundant number, since it is smaller than the sum of its proper divisors (2790931842).

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

2145454206 is a wasteful number, since it uses less digits than its factorization.

2145454206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338456.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 2145454206 is about 46319.0479824445. The cubic root of 2145454206 is about 1289.7526128577.

Adding to 2145454206 its reverse (6024545412), we get a palindrome (8169999618).

The spelling of 2145454206 in words is "two billion, one hundred forty-five million, four hundred fifty-four thousand, two hundred six".