108159649 has 8 divisors (see below), whose sum is σ = 118389992. Its totient is φ = 98202240.

The previous prime is 108159631. The next prime is 108159659. The reversal of 108159649 is 946951801.

It can be written as a sum of positive squares in 4 ways, for example, as 1140624 + 107019025 = 1068^2 + 10345^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 108159649 - 2⁵ = 108159617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108159629) 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, 67404 + ... + 68989.

It is an arithmetic number, because the mean of its divisors is an integer number (14798749).

Almost surely, 2^108159649 is an apocalyptic number.

It is an amenable number.

108159649 is a deficient number, since it is larger than the sum of its proper divisors (10230343).

108159649 is a wasteful number, since it uses less digits than its factorization.

108159649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136467.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 108159649 is about 10399.9831249863. The cubic root of 108159649 is about 476.4548546816.

The spelling of 108159649 in words is "one hundred eight million, one hundred fifty-nine thousand, six hundred forty-nine".