2145345254 has 16 divisors (see below), whose sum is σ = 3550085280. Its totient is φ = 966008640.

The previous prime is 2145345227. The next prime is 2145345259. The reversal of 2145345254 is 4525435412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145345259) 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, 1005194 + ... + 1007325.

It is an arithmetic number, because the mean of its divisors is an integer number (221880330).

Almost surely, 2^2145345254 is an apocalyptic number.

2145345254 is a deficient number, since it is larger than the sum of its proper divisors (1404740026).

2145345254 is a wasteful number, since it uses less digits than its factorization.

2145345254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012575.

The product of its digits is 96000, while the sum is 35.

The square root of 2145345254 is about 46317.8718638929. The cubic root of 2145345254 is about 1289.7307801062.

The spelling of 2145345254 in words is "two billion, one hundred forty-five million, three hundred forty-five thousand, two hundred fifty-four".