108456649 has 6 divisors (see below), whose sum is σ = 126163914. Its totient is φ = 92962800.

The previous prime is 108456643. The next prime is 108456671. The reversal of 108456649 is 946654801.

It can be written as a sum of positive squares in only one way, i.e., 79780624 + 28676025 = 8932^2 + 5355^2 .

It is not a de Polignac number, because 108456649 - 2¹⁵ = 108423881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108456643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1106652 + ... + 1106749.

It is an arithmetic number, because the mean of its divisors is an integer number (21027319).

Almost surely, 2^108456649 is an apocalyptic number.

It is an amenable number.

108456649 is a deficient number, since it is larger than the sum of its proper divisors (17707265).

108456649 is an equidigital number, since it uses as much as digits as its factorization.

108456649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213415 (or 2213408 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 108456649 is about 10414.2522055114. The cubic root of 108456649 is about 476.8905617344.

The spelling of 108456649 in words is "one hundred eight million, four hundred fifty-six thousand, six hundred forty-nine".