108633945 has 32 divisors (see below), whose sum is σ = 207286272. Its totient is φ = 47500992.

The previous prime is 108633929. The next prime is 108633947. The reversal of 108633945 is 549336801.

It is not a de Polignac number, because 108633945 - 2⁴ = 108633929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108633947) 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 31 ways as a sum of consecutive naturals, for example, 20077 + ... + 24906.

It is an arithmetic number, because the mean of its divisors is an integer number (6477696).

Almost surely, 2^108633945 is an apocalyptic number.

108633945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108633945 is a deficient number, since it is larger than the sum of its proper divisors (98652327).

108633945 is a wasteful number, since it uses less digits than its factorization.

108633945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45021.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 108633945 is about 10422.7609106225. The cubic root of 108633945 is about 477.1502807385.

The spelling of 108633945 in words is "one hundred eight million, six hundred thirty-three thousand, nine hundred forty-five".