1115387 has 24 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 822528.

The previous prime is 1115381. The next prime is 1115399. The reversal of 1115387 is 7835111.

It is not a de Polignac number, because 1115387 - 2⁸ = 1115131 is a prime.

Its product of digits (840) is a multiple of the sum of its prime divisors (140).

It is not an unprimeable number, because it can be changed into a prime (1115381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10778 + ... + 10880.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2^1115387 is an apocalyptic number.

1115387 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1115387 is a deficient number, since it is larger than the sum of its proper divisors (378469).

1115387 is a wasteful number, since it uses less digits than its factorization.

1115387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 140 counting only the distinct ones).

The product of its digits is 840, while the sum is 26.

The square root of 1115387 is about 1056.1188380102. The cubic root of 1115387 is about 103.7071086073.

The spelling of 1115387 in words is "one million, one hundred fifteen thousand, three hundred eighty-seven".