103218804 has 36 divisors (see below), whose sum is σ = 280985796. Its totient is φ = 31759488.

The previous prime is 103218803. The next prime is 103218823. The reversal of 103218804 is 408812301.

It can be written as a sum of positive squares in 2 ways, for example, as 33663204 + 69555600 = 5802^2 + 8340^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103218803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109809 + ... + 110744.

It is an arithmetic number, because the mean of its divisors is an integer number (7805161).

Almost surely, 2^103218804 is an apocalyptic number.

It is an amenable number.

103218804 is an abundant number, since it is smaller than the sum of its proper divisors (177766992).

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

103218804 is a wasteful number, since it uses less digits than its factorization.

103218804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220576 (or 220571 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 103218804 is about 10159.6655456762. The cubic root of 103218804 is about 469.0865069567.

The spelling of 103218804 in words is "one hundred three million, two hundred eighteen thousand, eight hundred four".