109140628 has 12 divisors (see below), whose sum is σ = 191076480. Its totient is φ = 54547352.

The previous prime is 109140623. The next prime is 109140631. The reversal of 109140628 is 826041901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 109140628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109140623) 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 in 3 ways as a sum of consecutive naturals, for example, 9375 + ... + 17497.

It is an arithmetic number, because the mean of its divisors is an integer number (15923040).

Almost surely, 2^109140628 is an apocalyptic number.

It is an amenable number.

109140628 is a deficient number, since it is larger than the sum of its proper divisors (81935852).

109140628 is a wasteful number, since it uses less digits than its factorization.

109140628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11486 (or 11484 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 109140628 is about 10447.0391977823. The cubic root of 109140628 is about 477.8909609305.

The spelling of 109140628 in words is "one hundred nine million, one hundred forty thousand, six hundred twenty-eight".