143920946489 has 4 divisors (see below), whose sum is σ = 143922060324. Its totient is φ = 143919832656.

The previous prime is 143920946479. The next prime is 143920946503. The reversal of 143920946489 is 984649029341.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9079231225 + 134841715264 = 95285^2 + 367208^2 .

It is a cyclic number.

It is not a de Polignac number, because 143920946489 - 2²⁴ = 143904169273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143920946479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333122 + ... + 631515.

It is an arithmetic number, because the mean of its divisors is an integer number (35980515081).

Almost surely, 2^143920946489 is an apocalyptic number.

It is an amenable number.

143920946489 is a deficient number, since it is larger than the sum of its proper divisors (1113835).

143920946489 is an equidigital number, since it uses as much as digits as its factorization.

143920946489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113834.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The spelling of 143920946489 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred forty-six thousand, four hundred eighty-nine".