1385111087 has 2 divisors, whose sum is σ = 1385111088. Its totient is φ = 1385111086.

The previous prime is 1385111059. The next prime is 1385111099. The reversal of 1385111087 is 7801115831.

It is a strong prime.

It is an emirp because it is prime and its reverse (7801115831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1385111087 - 2¹² = 1385106991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1385111047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692555543 + 692555544.

It is an arithmetic number, because the mean of its divisors is an integer number (692555544).

Almost surely, 2^1385111087 is an apocalyptic number.

1385111087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385111087 is an equidigital number, since it uses as much as digits as its factorization.

1385111087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 35.

The square root of 1385111087 is about 37217.0805813675. The cubic root of 1385111087 is about 1114.7090708720.

The spelling of 1385111087 in words is "one billion, three hundred eighty-five million, one hundred eleven thousand, eighty-seven".