110639 has 8 divisors (see below), whose sum is σ = 118272. Its totient is φ = 103320.

The previous prime is 110629. The next prime is 110641. The reversal of 110639 is 936011.

110639 = T₂₆ + T₂₇ + ... + T₈₇.

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

It is a cyclic number.

It is not a de Polignac number, because 110639 - 2⁴ = 110623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (14784).

2¹¹⁰⁶³⁹ is an apocalyptic number.

110639 is a deficient number, since it is larger than the sum of its proper divisors (7633).

110639 is an equidigital number, since it uses as much as digits as its factorization.

110639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 110639 is about 332.6244128142. The cubic root of 110639 is about 48.0067988055.

It can be divided in two parts, 1106 and 39, that multiplied together give a palindrome (43134).

The spelling of 110639 in words is "one hundred ten thousand, six hundred thirty-nine".