143235401 has 2 divisors, whose sum is σ = 143235402. Its totient is φ = 143235400.

The previous prime is 143235397. The next prime is 143235413. The reversal of 143235401 is 104532341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118831801 + 24403600 = 10901^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 143235401 - 2² = 143235397 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (143235431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71617700 + 71617701.

It is an arithmetic number, because the mean of its divisors is an integer number (71617701).

Almost surely, 2^143235401 is an apocalyptic number.

It is an amenable number.

143235401 is a deficient number, since it is larger than the sum of its proper divisors (1).

143235401 is an equidigital number, since it uses as much as digits as its factorization.

143235401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 143235401 is about 11968.0993060720. The cubic root of 143235401 is about 523.2189393451.

Adding to 143235401 its reverse (104532341), we get a palindrome (247767742).

The spelling of 143235401 in words is "one hundred forty-three million, two hundred thirty-five thousand, four hundred one".