1387963055 has 16 divisors (see below), whose sum is σ = 1769562720. Its totient is φ = 1043102592.

The previous prime is 1387963043. The next prime is 1387963081. The reversal of 1387963055 is 5503697831.

It is a cyclic number.

It is not a de Polignac number, because 1387963055 - 2⁴ = 1387963039 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 123989 + ... + 134718.

It is an arithmetic number, because the mean of its divisors is an integer number (110597670).

Almost surely, 2^1387963055 is an apocalyptic number.

1387963055 is a deficient number, since it is larger than the sum of its proper divisors (381599665).

1387963055 is a wasteful number, since it uses less digits than its factorization.

1387963055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258778.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 1387963055 is about 37255.3761892160. The cubic root of 1387963055 is about 1115.4736148789.

The spelling of 1387963055 in words is "one billion, three hundred eighty-seven million, nine hundred sixty-three thousand, fifty-five".