143131434409 has 2 divisors, whose sum is σ = 143131434410. Its totient is φ = 143131434408.

The previous prime is 143131434403. The next prime is 143131434421. The reversal of 143131434409 is 904434131341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137585355625 + 5546078784 = 370925^2 + 74472^2 .

It is a cyclic number.

It is not a de Polignac number, because 143131434409 - 2³ = 143131434401 is a prime.

It is a super-3 number, since 3×143131434409³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (143131434401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71565717204 + 71565717205.

It is an arithmetic number, because the mean of its divisors is an integer number (71565717205).

Almost surely, 2^143131434409 is an apocalyptic number.

It is an amenable number.

143131434409 is a deficient number, since it is larger than the sum of its proper divisors (1).

143131434409 is an equidigital number, since it uses as much as digits as its factorization.

143131434409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 143131434409 in words is "one hundred forty-three billion, one hundred thirty-one million, four hundred thirty-four thousand, four hundred nine".