109147638 has 8 divisors (see below), whose sum is σ = 218295288. Its totient is φ = 36382544.

The previous prime is 109147613. The next prime is 109147639. The reversal of 109147638 is 836741901.

It is a sphenic number, since it is the product of 3 distinct primes.

109147638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 109147596 and 109147605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109147639) 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, 9095631 + ... + 9095642.

It is an arithmetic number, because the mean of its divisors is an integer number (27286911).

Almost surely, 2^109147638 is an apocalyptic number.

109147638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

109147638 is a wasteful number, since it uses less digits than its factorization.

109147638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191278.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 109147638 is about 10447.3746941516. The cubic root of 109147638 is about 477.9011922073.

The spelling of 109147638 in words is "one hundred nine million, one hundred forty-seven thousand, six hundred thirty-eight".