143138831653 has 2 divisors, whose sum is σ = 143138831654. Its totient is φ = 143138831652.

The previous prime is 143138831639. The next prime is 143138831659. The reversal of 143138831653 is 356138831341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127076564484 + 16062267169 = 356478^2 + 126737^2 .

It is an emirp because it is prime and its reverse (356138831341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143138831653 - 2²⁵ = 143105277221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143138831659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71569415826 + 71569415827.

It is an arithmetic number, because the mean of its divisors is an integer number (71569415827).

Almost surely, 2^143138831653 is an apocalyptic number.

It is an amenable number.

143138831653 is a deficient number, since it is larger than the sum of its proper divisors (1).

143138831653 is an equidigital number, since it uses as much as digits as its factorization.

143138831653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The spelling of 143138831653 in words is "one hundred forty-three billion, one hundred thirty-eight million, eight hundred thirty-one thousand, six hundred fifty-three".