1388350099 has 2 divisors, whose sum is σ = 1388350100. Its totient is φ = 1388350098.

The previous prime is 1388350087. The next prime is 1388350109. The reversal of 1388350099 is 9900538831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1388350099 - 2⁷ = 1388349971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388350009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694175049 + 694175050.

It is an arithmetic number, because the mean of its divisors is an integer number (694175050).

Almost surely, 2^1388350099 is an apocalyptic number.

1388350099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388350099 is an equidigital number, since it uses as much as digits as its factorization.

1388350099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 1388350099 is about 37260.5702989098. The cubic root of 1388350099 is about 1115.5772913284.

The spelling of 1388350099 in words is "one billion, three hundred eighty-eight million, three hundred fifty thousand, ninety-nine".