1115216127 has 16 divisors (see below), whose sum is σ = 1658147680. Its totient is φ = 740788416.

The previous prime is 1115216117. The next prime is 1115216129. The reversal of 1115216127 is 7216125111.

1115216127 is a `hidden beast` number, since 1 + 11 + 521 + 6 + 127 = 666.

It is not a de Polignac number, because 1115216127 - 2⁷ = 1115215999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115216127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115216129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67078 + ... + 82035.

It is an arithmetic number, because the mean of its divisors is an integer number (103634230).

Almost surely, 2^1115216127 is an apocalyptic number.

1115216127 is a deficient number, since it is larger than the sum of its proper divisors (542931553).

1115216127 is a wasteful number, since it uses less digits than its factorization.

1115216127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149399 (or 149393 counting only the distinct ones).

The product of its digits is 840, while the sum is 27.

The square root of 1115216127 is about 33394.8518038335. The cubic root of 1115216127 is about 1037.0181249345.

The spelling of 1115216127 in words is "one billion, one hundred fifteen million, two hundred sixteen thousand, one hundred twenty-seven".