109517142 has 16 divisors (see below), whose sum is σ = 250324992. Its totient is φ = 31290600.

The previous prime is 109517113. The next prime is 109517153. The reversal of 109517142 is 241715901.

It is a congruent number.

It is an unprimeable number.

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, 1303734 + ... + 1303817.

It is an arithmetic number, because the mean of its divisors is an integer number (15645312).

Almost surely, 2^109517142 is an apocalyptic number.

109517142 is an abundant number, since it is smaller than the sum of its proper divisors (140807850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109517142 is a wasteful number, since it uses less digits than its factorization.

109517142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607563.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 109517142 is about 10465.0438126173. The cubic root of 109517142 is about 478.4398739103.

The spelling of 109517142 in words is "one hundred nine million, five hundred seventeen thousand, one hundred forty-two".