109645545 has 16 divisors (see below), whose sum is σ = 175993920. Its totient is φ = 58290624.

The previous prime is 109645519. The next prime is 109645553. The reversal of 109645545 is 545546901.

It is not a de Polignac number, because 109645545 - 2¹⁸ = 109383401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6775 + ... + 16284.

It is an arithmetic number, because the mean of its divisors is an integer number (10999620).

Almost surely, 2^109645545 is an apocalyptic number.

109645545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109645545 is a deficient number, since it is larger than the sum of its proper divisors (66348375).

109645545 is a wasteful number, since it uses less digits than its factorization.

109645545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23384.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 109645545 is about 10471.1768679552. The cubic root of 109645545 is about 478.6267826159.

The spelling of 109645545 in words is "one hundred nine million, six hundred forty-five thousand, five hundred forty-five".