2054143837 has 6 divisors (see below), whose sum is σ = 2109944414. Its totient is φ = 1998358200.

The previous prime is 2054143831. The next prime is 2054143867. The reversal of 2054143837 is 7383414502.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1998626436 + 55517401 = 44706^2 + 7451^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2054143837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2054143796 and 2054143805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054143831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271962 + ... + 279412.

Almost surely, 2^2054143837 is an apocalyptic number.

It is an amenable number.

2054143837 is a deficient number, since it is larger than the sum of its proper divisors (55800577).

2054143837 is an frugal number, since it uses more digits than its factorization.

2054143837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14939 (or 7488 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2054143837 is about 45322.6636132520. The cubic root of 2054143837 is about 1271.1894609839.

Multiplying 2054143837 by its sum of digits (37), we get a square (76003321969 = 275687²).

2054143837 divided by its sum of digits (37) gives a square (55517401 = 7451²).

The spelling of 2054143837 in words is "two billion, fifty-four million, one hundred forty-three thousand, eight hundred thirty-seven".