1188315 has 12 divisors (see below), whose sum is σ = 2059824. Its totient is φ = 633744.

The previous prime is 1188307. The next prime is 1188353. The reversal of 1188315 is 5138811.

It is not a de Polignac number, because 1188315 - 2³ = 1188307 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

1188315 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13159 + ... + 13248.

It is an arithmetic number, because the mean of its divisors is an integer number (171652).

2^1188315 is an apocalyptic number.

1188315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1188315 is a deficient number, since it is larger than the sum of its proper divisors (871509).

1188315 is a wasteful number, since it uses less digits than its factorization.

1188315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26418 (or 26415 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 1188315 is about 1090.0986193918. The cubic root of 1188315 is about 105.9198100047.

The spelling of 1188315 in words is "one million, one hundred eighty-eight thousand, three hundred fifteen".