1385757871 has 2 divisors, whose sum is σ = 1385757872. Its totient is φ = 1385757870.

The previous prime is 1385757847. The next prime is 1385757883. The reversal of 1385757871 is 1787575831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1385757871 - 2²⁵ = 1352203439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385757371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692878935 + 692878936.

It is an arithmetic number, because the mean of its divisors is an integer number (692878936).

Almost surely, 2^1385757871 is an apocalyptic number.

1385757871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385757871 is an equidigital number, since it uses as much as digits as its factorization.

1385757871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 52.

The square root of 1385757871 is about 37225.7689107962. The cubic root of 1385757871 is about 1114.8825500504.

The spelling of 1385757871 in words is "one billion, three hundred eighty-five million, seven hundred fifty-seven thousand, eight hundred seventy-one".