109412 has 12 divisors (see below), whose sum is σ = 202860. Its totient is φ = 51456.

The previous prime is 109397. The next prime is 109423. The reversal of 109412 is 214901.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 98596 + 10816 = 314^2 + 104^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

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

It is an unprimeable number.

109412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737 + ... + 872.

It is an arithmetic number, because the mean of its divisors is an integer number (16905).

2¹⁰⁹⁴¹² is an apocalyptic number.

It is an amenable number.

109412 is a deficient number, since it is larger than the sum of its proper divisors (93448).

109412 is a wasteful number, since it uses less digits than its factorization.

109412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 109412 is about 330.7748478951. The cubic root of 109412 is about 47.8286716054.

The spelling of 109412 in words is "one hundred nine thousand, four hundred twelve".