1127864155 has 16 divisors (see below), whose sum is σ = 1516384224. Its totient is φ = 798094080.

The previous prime is 1127864147. The next prime is 1127864173. The reversal of 1127864155 is 5514687211.

It is not a de Polignac number, because 1127864155 - 2³ = 1127864147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275082 + ... + 279151.

It is an arithmetic number, because the mean of its divisors is an integer number (94774014).

Almost surely, 2^1127864155 is an apocalyptic number.

1127864155 is a deficient number, since it is larger than the sum of its proper divisors (388520069).

1127864155 is a wasteful number, since it uses less digits than its factorization.

1127864155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554286.

The product of its digits is 67200, while the sum is 40.

The square root of 1127864155 is about 33583.6888235941. The cubic root of 1127864155 is about 1040.9237831856.

The spelling of 1127864155 in words is "one billion, one hundred twenty-seven million, eight hundred sixty-four thousand, one hundred fifty-five".