109689141 has 4 divisors (see below), whose sum is σ = 146252192. Its totient is φ = 73126092.

The previous prime is 109689137. The next prime is 109689157. The reversal of 109689141 is 141986901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 109689141 - 2² = 109689137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109689141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109689101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18281521 + ... + 18281526.

It is an arithmetic number, because the mean of its divisors is an integer number (36563048).

Almost surely, 2^109689141 is an apocalyptic number.

It is an amenable number.

109689141 is a deficient number, since it is larger than the sum of its proper divisors (36563051).

109689141 is an equidigital number, since it uses as much as digits as its factorization.

109689141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36563050.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 109689141 is about 10473.2583755009. The cubic root of 109689141 is about 478.6902095683.

The spelling of 109689141 in words is "one hundred nine million, six hundred eighty-nine thousand, one hundred forty-one".