109565042 has 4 divisors (see below), whose sum is σ = 164347566. Its totient is φ = 54782520.

The previous prime is 109565041. The next prime is 109565047. The reversal of 109565042 is 240565901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68873401 + 40691641 = 8299^2 + 6379^2 .

It is not an unprimeable number, because it can be changed into a prime (109565041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27391259 + ... + 27391262.

Almost surely, 2^109565042 is an apocalyptic number.

109565042 is a deficient number, since it is larger than the sum of its proper divisors (54782524).

109565042 is an equidigital number, since it uses as much as digits as its factorization.

109565042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54782523.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 109565042 is about 10467.3321338343. The cubic root of 109565042 is about 478.5096162028.

The spelling of 109565042 in words is "one hundred nine million, five hundred sixty-five thousand, forty-two".