108381615135 has 16 divisors (see below), whose sum is σ = 173436163584. Its totient is φ = 57795001632.

The previous prime is 108381615119. The next prime is 108381615143. The reversal of 108381615135 is 531516183801.

It is a happy number.

It is not a de Polignac number, because 108381615135 - 2⁴ = 108381615119 is a prime.

It is a super-2 number, since 2×108381615135² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 427147 + ... + 631836.

It is an arithmetic number, because the mean of its divisors is an integer number (10839760224).

Almost surely, 2^108381615135 is an apocalyptic number.

108381615135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108381615135 is a deficient number, since it is larger than the sum of its proper divisors (65054548449).

108381615135 is a wasteful number, since it uses less digits than its factorization.

108381615135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065814.

The product of its (nonzero) digits is 86400, while the sum is 42.

Adding to 108381615135 its reverse (531516183801), we get a palindrome (639897798936).

The spelling of 108381615135 in words is "one hundred eight billion, three hundred eighty-one million, six hundred fifteen thousand, one hundred thirty-five".