109436 has 12 divisors (see below), whose sum is σ = 194040. Its totient is φ = 54000.

The previous prime is 109433. The next prime is 109441. The reversal of 109436 is 634901.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 109436.

It is not an unprimeable number, because it can be changed into a prime (109433) 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 in 3 ways as a sum of consecutive naturals, for example, 311 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2¹⁰⁹⁴³⁶ is an apocalyptic number.

It is an amenable number.

109436 is a deficient number, since it is larger than the sum of its proper divisors (84604).

109436 is a wasteful number, since it uses less digits than its factorization.

109436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 109436 is about 330.8111243595. The cubic root of 109436 is about 47.8321684924.

It can be divided in two parts, 109 and 436, that multiplied together give a square (47524 = 218²).

The spelling of 109436 in words is "one hundred nine thousand, four hundred thirty-six".