143912111657 has 2 divisors, whose sum is σ = 143912111658. Its totient is φ = 143912111656.

The previous prime is 143912111543. The next prime is 143912111663. The reversal of 143912111657 is 756111219341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136235548201 + 7676563456 = 369101^2 + 87616^2 .

It is a cyclic number.

It is not a de Polignac number, because 143912111657 - 2¹⁸ = 143911849513 is a prime.

It is not a weakly prime, because it can be changed into another prime (143912111257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71956055828 + 71956055829.

It is an arithmetic number, because the mean of its divisors is an integer number (71956055829).

Almost surely, 2^143912111657 is an apocalyptic number.

It is an amenable number.

143912111657 is a deficient number, since it is larger than the sum of its proper divisors (1).

143912111657 is an equidigital number, since it uses as much as digits as its factorization.

143912111657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The spelling of 143912111657 in words is "one hundred forty-three billion, nine hundred twelve million, one hundred eleven thousand, six hundred fifty-seven".