103545221 has 8 divisors (see below), whose sum is σ = 112922880. Its totient is φ = 94369392.

The previous prime is 103545209. The next prime is 103545229. The reversal of 103545221 is 122545301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103545221 - 2⁶ = 103545157 is a prime.

It is a super-3 number, since 3×103545221³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103545229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49385 + ... + 51438.

It is an arithmetic number, because the mean of its divisors is an integer number (14115360).

Almost surely, 2^103545221 is an apocalyptic number.

It is an amenable number.

103545221 is a deficient number, since it is larger than the sum of its proper divisors (9377659).

103545221 is a wasteful number, since it uses less digits than its factorization.

103545221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100915.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 103545221 is about 10175.7172228792. The cubic root of 103545221 is about 469.5804631025.

The spelling of 103545221 in words is "one hundred three million, five hundred forty-five thousand, two hundred twenty-one".