143859749249 has 2 divisors, whose sum is σ = 143859749250. Its totient is φ = 143859749248.

The previous prime is 143859749227. The next prime is 143859749309. The reversal of 143859749249 is 942947958341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143807808400 + 51940849 = 379220^2 + 7207^2 .

It is a cyclic number.

It is not a de Polignac number, because 143859749249 - 2²⁰ = 143858700673 is a prime.

It is not a weakly prime, because it can be changed into another prime (143859749549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71929874624 + 71929874625.

It is an arithmetic number, because the mean of its divisors is an integer number (71929874625).

Almost surely, 2^143859749249 is an apocalyptic number.

It is an amenable number.

143859749249 is a deficient number, since it is larger than the sum of its proper divisors (1).

143859749249 is an equidigital number, since it uses as much as digits as its factorization.

143859749249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The spelling of 143859749249 in words is "one hundred forty-three billion, eight hundred fifty-nine million, seven hundred forty-nine thousand, two hundred forty-nine".