103445409 has 8 divisors (see below), whose sum is σ = 138650112. Its totient is φ = 68602160.

The previous prime is 103445399. The next prime is 103445411. The reversal of 103445409 is 904544301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103445409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103445429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89694 + ... + 90839.

It is an arithmetic number, because the mean of its divisors is an integer number (17331264).

Almost surely, 2^103445409 is an apocalyptic number.

It is an amenable number.

103445409 is a deficient number, since it is larger than the sum of its proper divisors (35204703).

103445409 is a wasteful number, since it uses less digits than its factorization.

103445409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180727.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 103445409 is about 10170.8116195316. The cubic root of 103445409 is about 469.4295311948.

It can be divided in two parts, 10344 and 5409, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 103445409 in words is "one hundred three million, four hundred forty-five thousand, four hundred nine".