109140644 has 6 divisors (see below), whose sum is σ = 190996134. Its totient is φ = 54570320.

The previous prime is 109140641. The next prime is 109140653. The reversal of 109140644 is 446041901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 83028544 + 26112100 = 9112^2 + 5110^2 .

It is not an unprimeable number, because it can be changed into a prime (109140641) by changing a digit.

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 as a sum of consecutive naturals, namely, 13642577 + ... + 13642584.

It is an arithmetic number, because the mean of its divisors is an integer number (31832689).

Almost surely, 2^109140644 is an apocalyptic number.

It is an amenable number.

109140644 is a deficient number, since it is larger than the sum of its proper divisors (81855490).

109140644 is a wasteful number, since it uses less digits than its factorization.

109140644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27285165 (or 27285163 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 109140644 is about 10447.0399635495. The cubic root of 109140644 is about 477.8909842834.

The spelling of 109140644 in words is "one hundred nine million, one hundred forty thousand, six hundred forty-four".