109648142 has 4 divisors (see below), whose sum is σ = 164472216. Its totient is φ = 54824070.

The previous prime is 109648141. The next prime is 109648193. The reversal of 109648142 is 241846901.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109648141) 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, 27412034 + ... + 27412037.

It is an arithmetic number, because the mean of its divisors is an integer number (41118054).

Almost surely, 2^109648142 is an apocalyptic number.

109648142 is a deficient number, since it is larger than the sum of its proper divisors (54824074).

109648142 is an equidigital number, since it uses as much as digits as its factorization.

109648142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54824073.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 109648142 is about 10471.3008742945. The cubic root of 109648142 is about 478.6305614104.

The spelling of 109648142 in words is "one hundred nine million, six hundred forty-eight thousand, one hundred forty-two".