108691445 has 8 divisors (see below), whose sum is σ = 136100736. Its totient is φ = 83172496.

The previous prime is 108691417. The next prime is 108691469. The reversal of 108691445 is 544196801.

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 108691445 - 2¹² = 108687349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108691399 and 108691408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472457 + ... + 472686.

It is an arithmetic number, because the mean of its divisors is an integer number (17012592).

Almost surely, 2^108691445 is an apocalyptic number.

It is an amenable number.

108691445 is a deficient number, since it is larger than the sum of its proper divisors (27409291).

108691445 is an equidigital number, since it uses as much as digits as its factorization.

108691445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945171.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 108691445 is about 10425.5189319285. The cubic root of 108691445 is about 477.2344511818.

The spelling of 108691445 in words is "one hundred eight million, six hundred ninety-one thousand, four hundred forty-five".