1138312127 has 2 divisors, whose sum is σ = 1138312128. Its totient is φ = 1138312126.

The previous prime is 1138312121. The next prime is 1138312177. The reversal of 1138312127 is 7212138311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1138312127 - 2⁸ = 1138311871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1138312127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1138312121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569156063 + 569156064.

It is an arithmetic number, because the mean of its divisors is an integer number (569156064).

Almost surely, 2^1138312127 is an apocalyptic number.

1138312127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138312127 is an equidigital number, since it uses as much as digits as its factorization.

1138312127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 1138312127 is about 33738.8815315505. The cubic root of 1138312127 is about 1044.1281089274.

The spelling of 1138312127 in words is "one billion, one hundred thirty-eight million, three hundred twelve thousand, one hundred twenty-seven".