109657641 has 8 divisors (see below), whose sum is σ = 146331360. Its totient is φ = 73044512.

The previous prime is 109657631. The next prime is 109657643. The reversal of 109657641 is 146756901.

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 109657641 - 2¹⁵ = 109624873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109657641.

It is not an unprimeable number, because it can be changed into a prime (109657643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10740 + ... + 18293.

It is an arithmetic number, because the mean of its divisors is an integer number (18291420).

Almost surely, 2^109657641 is an apocalyptic number.

It is an amenable number.

109657641 is a deficient number, since it is larger than the sum of its proper divisors (36673719).

109657641 is a wasteful number, since it uses less digits than its factorization.

109657641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30295.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 109657641 is about 10471.7544375334. The cubic root of 109657641 is about 478.6443825305.

The spelling of 109657641 in words is "one hundred nine million, six hundred fifty-seven thousand, six hundred forty-one".