157287320143 has 2 divisors, whose sum is σ = 157287320144. Its totient is φ = 157287320142.

The previous prime is 157287320123. The next prime is 157287320149. The reversal of 157287320143 is 341023782751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157287320143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157287320143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157287320149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78643660071 + 78643660072.

It is an arithmetic number, because the mean of its divisors is an integer number (78643660072).

Almost surely, 2^157287320143 is an apocalyptic number.

157287320143 is a deficient number, since it is larger than the sum of its proper divisors (1).

157287320143 is an equidigital number, since it uses as much as digits as its factorization.

157287320143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 157287320143 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, three hundred twenty thousand, one hundred forty-three".