109867540 has 12 divisors (see below), whose sum is σ = 230721876. Its totient is φ = 43947008.

The previous prime is 109867517. The next prime is 109867547. The reversal of 109867540 is 45768901.

It can be written as a sum of positive squares in 2 ways, for example, as 80317444 + 29550096 = 8962^2 + 5436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109867493 and 109867502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109867547) 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, 2746669 + ... + 2746708.

It is an arithmetic number, because the mean of its divisors is an integer number (19226823).

Almost surely, 2^109867540 is an apocalyptic number.

109867540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109867540 is an abundant number, since it is smaller than the sum of its proper divisors (120854336).

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

109867540 is a wasteful number, since it uses less digits than its factorization.

109867540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493386 (or 5493384 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 109867540 is about 10481.7717967908. The cubic root of 109867540 is about 478.9495837675.

The spelling of 109867540 in words is "one hundred nine million, eight hundred sixty-seven thousand, five hundred forty".