143468681 has 2 divisors, whose sum is σ = 143468682. Its totient is φ = 143468680.

The previous prime is 143468669. The next prime is 143468719. The reversal of 143468681 is 186864341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135955600 + 7513081 = 11660^2 + 2741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143468681 is a prime.

It is a super-2 number, since 2×143468681² = 41166524855759522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143468621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71734340 + 71734341.

It is an arithmetic number, because the mean of its divisors is an integer number (71734341).

Almost surely, 2^143468681 is an apocalyptic number.

It is an amenable number.

143468681 is a deficient number, since it is larger than the sum of its proper divisors (1).

143468681 is an equidigital number, since it uses as much as digits as its factorization.

143468681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 143468681 is about 11977.8412495741. The cubic root of 143468681 is about 523.5028317135.

The spelling of 143468681 in words is "one hundred forty-three million, four hundred sixty-eight thousand, six hundred eighty-one".