108387015 has 16 divisors (see below), whose sum is σ = 189184896. Its totient is φ = 52551200.

The previous prime is 108387011. The next prime is 108387031. The reversal of 108387015 is 510783801.

It is not a de Polignac number, because 108387015 - 2² = 108387011 is a prime.

It is a super-2 number, since 2×108387015² = 23495490041220450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108387011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328281 + ... + 328610.

It is an arithmetic number, because the mean of its divisors is an integer number (11824056).

Almost surely, 2^108387015 is an apocalyptic number.

108387015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108387015 is a deficient number, since it is larger than the sum of its proper divisors (80797881).

108387015 is a wasteful number, since it uses less digits than its factorization.

108387015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656910.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 108387015 is about 10410.9084618010. The cubic root of 108387015 is about 476.7884782225.

The spelling of 108387015 in words is "one hundred eight million, three hundred eighty-seven thousand, fifteen".