2543521146 has 16 divisors (see below), whose sum is σ = 5354781600. Its totient is φ = 803217168.

The previous prime is 2543521133. The next prime is 2543521157. The reversal of 2543521146 is 6411253452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11155681 + ... + 11155908.

It is an arithmetic number, because the mean of its divisors is an integer number (334673850).

Almost surely, 2^2543521146 is an apocalyptic number.

2543521146 is an abundant number, since it is smaller than the sum of its proper divisors (2811260454).

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

2543521146 is a wasteful number, since it uses less digits than its factorization.

2543521146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22311613.

The product of its digits is 28800, while the sum is 33.

The square root of 2543521146 is about 50433.3336792245. Note that the first 3 decimals coincide. The cubic root of 2543521146 is about 1365.0391820120.

Adding to 2543521146 its reverse (6411253452), we get a palindrome (8954774598).

The spelling of 2543521146 in words is "two billion, five hundred forty-three million, five hundred twenty-one thousand, one hundred forty-six".