1128138107 has 2 divisors, whose sum is σ = 1128138108. Its totient is φ = 1128138106.

The previous prime is 1128138097. The next prime is 1128138157. The reversal of 1128138107 is 7018318211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128138107 is a prime.

It is a super-3 number, since 3×1128138107³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1128138157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564069053 + 564069054.

It is an arithmetic number, because the mean of its divisors is an integer number (564069054).

Almost surely, 2^1128138107 is an apocalyptic number.

1128138107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128138107 is an equidigital number, since it uses as much as digits as its factorization.

1128138107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 1128138107 is about 33587.7672226065. The cubic root of 1128138107 is about 1041.0080545835.

The spelling of 1128138107 in words is "one billion, one hundred twenty-eight million, one hundred thirty-eight thousand, one hundred seven".