1388647114 has 4 divisors (see below), whose sum is σ = 2082970674. Its totient is φ = 694323556.

The previous prime is 1388647097. The next prime is 1388647151. The reversal of 1388647114 is 4117468831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1239392025 + 149255089 = 35205^2 + 12217^2 .

It is a super-3 number, since 3×1388647114³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347161777 + ... + 347161780.

Almost surely, 2^1388647114 is an apocalyptic number.

1388647114 is a deficient number, since it is larger than the sum of its proper divisors (694323560).

1388647114 is an equidigital number, since it uses as much as digits as its factorization.

1388647114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694323559.

The product of its digits is 129024, while the sum is 43.

The square root of 1388647114 is about 37264.5557332970. Note that the first 3 decimals coincide. The cubic root of 1388647114 is about 1115.6568388824.

The spelling of 1388647114 in words is "one billion, three hundred eighty-eight million, six hundred forty-seven thousand, one hundred fourteen".