109782545 has 16 divisors (see below), whose sum is σ = 136719360. Its totient is φ = 84525504.

The previous prime is 109782521. The next prime is 109782577. The reversal of 109782545 is 545287901.

It is a cyclic number.

It is not a de Polignac number, because 109782545 - 2²⁶ = 42673681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52184 + ... + 54246.

It is an arithmetic number, because the mean of its divisors is an integer number (8544960).

Almost surely, 2^109782545 is an apocalyptic number.

It is an amenable number.

109782545 is a deficient number, since it is larger than the sum of its proper divisors (26936815).

109782545 is a wasteful number, since it uses less digits than its factorization.

109782545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 109782545 is about 10477.7165928460. The cubic root of 109782545 is about 478.8260446345.

The spelling of 109782545 in words is "one hundred nine million, seven hundred eighty-two thousand, five hundred forty-five".