108615385 has 8 divisors (see below), whose sum is σ = 131059656. Its totient is φ = 86411520.

The previous prime is 108615383. The next prime is 108615421. The reversal of 108615385 is 583516801.

108615385 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 6948496 + 101666889 = 2636^2 + 10083^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108615385 - 2¹ = 108615383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108615383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59104 + ... + 60913.

It is an arithmetic number, because the mean of its divisors is an integer number (16382457).

Almost surely, 2^108615385 is an apocalyptic number.

It is an amenable number.

108615385 is a deficient number, since it is larger than the sum of its proper divisors (22444271).

108615385 is a wasteful number, since it uses less digits than its factorization.

108615385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120203.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 108615385 is about 10421.8705134923. The cubic root of 108615385 is about 477.1231056427.

It can be divided in two parts, 1086 and 15385, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 108615385 in words is "one hundred eight million, six hundred fifteen thousand, three hundred eighty-five".