103689845 has 32 divisors (see below), whose sum is σ = 146016000. Its totient is φ = 69221376.

The previous prime is 103689841. The next prime is 103689853. The reversal of 103689845 is 548986301.

It is not a de Polignac number, because 103689845 - 2² = 103689841 is a prime.

It is a super-2 number, since 2×103689845² = 21503167912248050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103689796 and 103689805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103689841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307517 + ... + 307853.

It is an arithmetic number, because the mean of its divisors is an integer number (4563000).

Almost surely, 2^103689845 is an apocalyptic number.

It is an amenable number.

103689845 is a deficient number, since it is larger than the sum of its proper divisors (42326155).

103689845 is a wasteful number, since it uses less digits than its factorization.

103689845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 103689845 is about 10182.8210727676. The cubic root of 103689845 is about 469.7989860190.

The spelling of 103689845 in words is "one hundred three million, six hundred eighty-nine thousand, eight hundred forty-five".