143705420638245 has 12 divisors (see below), whose sum is σ = 249089395773036. Its totient is φ = 76642891007040.

The previous prime is 143705420638151. The next prime is 143705420638319. The reversal of 143705420638245 is 542836024507341.

143705420638245 is a `hidden beast` number, since 1 + 4 + 3 + 7 + 0 + 54 + 206 + 382 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105388107388641 + 38317313249604 = 10265871^2 + 6190098^2 .

It is not a de Polignac number, because 143705420638245 - 2¹⁸ = 143705420376101 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143705420638191 and 143705420638200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1596726895936 + ... + 1596726896025.

It is an arithmetic number, because the mean of its divisors is an integer number (20757449647753).

Almost surely, 2^{143705420638245} is an apocalyptic number.

143705420638245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143705420638245 is a deficient number, since it is larger than the sum of its proper divisors (105383975134791).

143705420638245 is a wasteful number, since it uses less digits than its factorization.

143705420638245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193453791972 (or 3193453791969 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 54.

The spelling of 143705420638245 in words is "one hundred forty-three trillion, seven hundred five billion, four hundred twenty million, six hundred thirty-eight thousand, two hundred forty-five".