2143525340 has 48 divisors (see below), whose sum is σ = 4914501984. Its totient is φ = 778848000.

The previous prime is 2143525339. The next prime is 2143525367. The reversal of 2143525340 is 435253412.

It is a happy number.

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, 348290 + ... + 354390.

It is an arithmetic number, because the mean of its divisors is an integer number (102385458).

Almost surely, 2^2143525340 is an apocalyptic number.

2143525340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143525340 is an abundant number, since it is smaller than the sum of its proper divisors (2770976644).

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

2143525340 is a wasteful number, since it uses less digits than its factorization.

2143525340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718 (or 7716 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2143525340 is about 46298.2217801073. The cubic root of 2143525340 is about 1289.3659805279.

Adding to 2143525340 its reverse (435253412), we get a palindrome (2578778752).

The spelling of 2143525340 in words is "two billion, one hundred forty-three million, five hundred twenty-five thousand, three hundred forty".