53400143 has 2 divisors, whose sum is σ = 53400144. Its totient is φ = 53400142.

The previous prime is 53400121. The next prime is 53400167. The reversal of 53400143 is 34100435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53400143 - 2⁶ = 53400079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53400103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26700071 + 26700072.

It is an arithmetic number, because the mean of its divisors is an integer number (26700072).

Almost surely, 2^53400143 is an apocalyptic number.

53400143 is a deficient number, since it is larger than the sum of its proper divisors (1).

53400143 is an equidigital number, since it uses as much as digits as its factorization.

53400143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53400143 is about 7307.5401469989. The cubic root of 53400143 is about 376.5715217262.

Adding to 53400143 its reverse (34100435), we get a palindrome (87500578).

The spelling of 53400143 in words is "fifty-three million, four hundred thousand, one hundred forty-three".