143338497697 has 4 divisors (see below), whose sum is σ = 143341598740. Its totient is φ = 143335396656.

The previous prime is 143338497691. The next prime is 143338497719. The reversal of 143338497697 is 796794833341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7814383201 + 135524114496 = 88399^2 + 368136^2 .

It is a cyclic number.

It is not a de Polignac number, because 143338497697 - 2²³ = 143330109089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143338497691) 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, 1480122 + ... + 1573987.

It is an arithmetic number, because the mean of its divisors is an integer number (35835399685).

Almost surely, 2^143338497697 is an apocalyptic number.

It is an amenable number.

143338497697 is a deficient number, since it is larger than the sum of its proper divisors (3101043).

143338497697 is an equidigital number, since it uses as much as digits as its factorization.

143338497697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101042.

The product of its digits is 82301184, while the sum is 64.

The spelling of 143338497697 in words is "one hundred forty-three billion, three hundred thirty-eight million, four hundred ninety-seven thousand, six hundred ninety-seven".