103661369 has 4 divisors (see below), whose sum is σ = 118470144. Its totient is φ = 88852596.

The previous prime is 103661357. The next prime is 103661377. The reversal of 103661369 is 963166301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 103661369 - 2⁴ = 103661353 is a prime.

It is a super-2 number, since 2×103661369² = 21491358845908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103661339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7404377 + ... + 7404390.

It is an arithmetic number, because the mean of its divisors is an integer number (29617536).

Almost surely, 2^103661369 is an apocalyptic number.

It is an amenable number.

103661369 is a deficient number, since it is larger than the sum of its proper divisors (14808775).

103661369 is an equidigital number, since it uses as much as digits as its factorization.

103661369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14808774.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 103661369 is about 10181.4227394800. The cubic root of 103661369 is about 469.7559756330.

The spelling of 103661369 in words is "one hundred three million, six hundred sixty-one thousand, three hundred sixty-nine".