1387332071 has 2 divisors, whose sum is σ = 1387332072. Its totient is φ = 1387332070.

The previous prime is 1387332049. The next prime is 1387332109. The reversal of 1387332071 is 1702337831.

It is a weak prime.

It is an emirp because it is prime and its reverse (1702337831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1387332071 - 2¹⁸ = 1387069927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1387332031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693666035 + 693666036.

It is an arithmetic number, because the mean of its divisors is an integer number (693666036).

Almost surely, 2^1387332071 is an apocalyptic number.

1387332071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1387332071 is an equidigital number, since it uses as much as digits as its factorization.

1387332071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1387332071 is about 37246.9068648660. The cubic root of 1387332071 is about 1115.3045535371.

The spelling of 1387332071 in words is "one billion, three hundred eighty-seven million, three hundred thirty-two thousand, seventy-one".