2143837714225 has 9 divisors (see below), whose sum is σ = 2658367843617. Its totient is φ = 1715064314640.

The previous prime is 2143837714219. The next prime is 2143837714367. The reversal of 2143837714225 is 5224177383412.

The square root of 2143837714225 is 1464185.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 101179339569 + 2042658374656 = 318087^2 + 1429216^2 .

It is not a de Polignac number, because 2143837714225 - 2¹⁵ = 2143837681457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7174507 + ... + 7467343.

Almost surely, 2^{2143837714225} is an apocalyptic number.

2143837714225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2143837714225 is the 1464185-th square number.

2143837714225 is the 732093-rd centered octagonal number.

It is an amenable number.

2143837714225 is a deficient number, since it is larger than the sum of its proper divisors (514530129392).

2143837714225 is an frugal number, since it uses more digits than its factorization.

2143837714225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585684 (or 292842 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

Multiplying 2143837714225 by its sum of digits (49), we get a square (105048047997025 = 10249295²).

The spelling of 2143837714225 in words is "two trillion, one hundred forty-three billion, eight hundred thirty-seven million, seven hundred fourteen thousand, two hundred twenty-five".