143860344817649 has 2 divisors, whose sum is σ = 143860344817650. Its totient is φ = 143860344817648.

The previous prime is 143860344817589. The next prime is 143860344817663. The reversal of 143860344817649 is 946718443068341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119627418754624 + 24232926063025 = 10937432^2 + 4922695^2 .

It is a cyclic number.

It is not a de Polignac number, because 143860344817649 - 2⁴⁰ = 142760833189873 is a prime.

It is a super-2 number, since 2×143860344817649² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (143860344817669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71930172408824 + 71930172408825.

It is an arithmetic number, because the mean of its divisors is an integer number (71930172408825).

Almost surely, 2^{143860344817649} is an apocalyptic number.

It is an amenable number.

143860344817649 is a deficient number, since it is larger than the sum of its proper divisors (1).

143860344817649 is an equidigital number, since it uses as much as digits as its factorization.

143860344817649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 334430208, while the sum is 68.

The spelling of 143860344817649 in words is "one hundred forty-three trillion, eight hundred sixty billion, three hundred forty-four million, eight hundred seventeen thousand, six hundred forty-nine".