1127667138 has 64 divisors (see below), whose sum is σ = 2667893760. Its totient is φ = 314411328.

The previous prime is 1127667097. The next prime is 1127667143. The reversal of 1127667138 is 8317667211.

It is a super-2 number, since 2×1127667138² = 2543266348250222088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1127667138.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17545 + ... + 50627.

It is an arithmetic number, because the mean of its divisors is an integer number (41685840).

Almost surely, 2^1127667138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1127667138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1333946880).

1127667138 is an abundant number, since it is smaller than the sum of its proper divisors (1540226622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1127667138 is a wasteful number, since it uses less digits than its factorization.

1127667138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33143.

The product of its digits is 84672, while the sum is 42.

The square root of 1127667138 is about 33580.7554709539. The cubic root of 1127667138 is about 1040.8631696142.

The spelling of 1127667138 in words is "one billion, one hundred twenty-seven million, six hundred sixty-seven thousand, one hundred thirty-eight".