103611601 has 4 divisors (see below), whose sum is σ = 105031012. Its totient is φ = 102192192.

The previous prime is 103611589. The next prime is 103611623. The reversal of 103611601 is 106116301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106116301 = 5039 ⋅21059.

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 69739201 = 5820^2 + 8351^2 .

It is a cyclic number.

It is not a de Polignac number, because 103611601 - 2²¹ = 101514449 is a prime.

It is a super-3 number, since 3×103611601³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103611301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709596 + ... + 709741.

It is an arithmetic number, because the mean of its divisors is an integer number (26257753).

Almost surely, 2^103611601 is an apocalyptic number.

It is an amenable number.

103611601 is a deficient number, since it is larger than the sum of its proper divisors (1419411).

103611601 is an equidigital number, since it uses as much as digits as its factorization.

103611601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419410.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 103611601 is about 10178.9783868520. The cubic root of 103611601 is about 469.6807867174.

Adding to 103611601 its reverse (106116301), we get a palindrome (209727902).

The spelling of 103611601 in words is "one hundred three million, six hundred eleven thousand, six hundred one".