109179473 has 4 divisors (see below), whose sum is σ = 117577908. Its totient is φ = 100781040.

The previous prime is 109179467. The next prime is 109179479. The reversal of 109179473 is 374971901.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (109179467) and next prime (109179479).

It can be written as a sum of positive squares in 2 ways, for example, as 15147664 + 94031809 = 3892^2 + 9697^2 .

It is a cyclic number.

It is not a de Polignac number, because 109179473 - 2¹⁶ = 109113937 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 109179473.

It is not an unprimeable number, because it can be changed into a prime (109179479) 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, 4199198 + ... + 4199223.

It is an arithmetic number, because the mean of its divisors is an integer number (29394477).

Almost surely, 2^109179473 is an apocalyptic number.

109179473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

109179473 is a deficient number, since it is larger than the sum of its proper divisors (8398435).

109179473 is an equidigital number, since it uses as much as digits as its factorization.

109179473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398434.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 109179473 is about 10448.8981715777. The cubic root of 109179473 is about 477.9476507040.

The spelling of 109179473 in words is "one hundred nine million, one hundred seventy-nine thousand, four hundred seventy-three".