1127138927 has 4 divisors (see below), whose sum is σ = 1127206080. Its totient is φ = 1127071776.

The previous prime is 1127138869. The next prime is 1127138939. The reversal of 1127138927 is 7298317211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7298317211 = 251 ⋅29076961.

It is a cyclic number.

It is not a de Polignac number, because 1127138927 - 2⁸ = 1127138671 is a prime.

It is a super-2 number, since 2×1127138927² = 2540884321517422658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1127138027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16103 + ... + 50135.

It is an arithmetic number, because the mean of its divisors is an integer number (281801520).

Almost surely, 2^1127138927 is an apocalyptic number.

1127138927 is a deficient number, since it is larger than the sum of its proper divisors (67153).

1127138927 is an equidigital number, since it uses as much as digits as its factorization.

1127138927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67152.

The product of its digits is 42336, while the sum is 41.

The square root of 1127138927 is about 33572.8897624259. The cubic root of 1127138927 is about 1040.7006271928.

The spelling of 1127138927 in words is "one billion, one hundred twenty-seven million, one hundred thirty-eight thousand, nine hundred twenty-seven".