109567138 has 16 divisors (see below), whose sum is σ = 170835840. Its totient is φ = 52657776.

The previous prime is 109567109. The next prime is 109567151. The reversal of 109567138 is 831765901.

It is a super-2 number, since 2×109567138² = 24009915459022088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109567138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2778 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (10677240).

Almost surely, 2^109567138 is an apocalyptic number.

109567138 is a deficient number, since it is larger than the sum of its proper divisors (61268702).

109567138 is a wasteful number, since it uses less digits than its factorization.

109567138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17961.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 109567138 is about 10467.4322543783. The cubic root of 109567138 is about 478.5126675098.

The spelling of 109567138 in words is "one hundred nine million, five hundred sixty-seven thousand, one hundred thirty-eight".