143400401 has 2 divisors, whose sum is σ = 143400402. Its totient is φ = 143400400.

The previous prime is 143400379. The next prime is 143400427. The reversal of 143400401 is 104004341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143041600 + 358801 = 11960^2 + 599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143400401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143400401.

It is not a weakly prime, because it can be changed into another prime (143400461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71700200 + 71700201.

It is an arithmetic number, because the mean of its divisors is an integer number (71700201).

Almost surely, 2^143400401 is an apocalyptic number.

It is an amenable number.

143400401 is a deficient number, since it is larger than the sum of its proper divisors (1).

143400401 is an equidigital number, since it uses as much as digits as its factorization.

143400401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 143400401 is about 11974.9906471780. The cubic root of 143400401 is about 523.4197695772.

Adding to 143400401 its reverse (104004341), we get a palindrome (247404742).

The spelling of 143400401 in words is "one hundred forty-three million, four hundred thousand, four hundred one".