103645523 has 4 divisors (see below), whose sum is σ = 106055928. Its totient is φ = 101235120.

The previous prime is 103645517. The next prime is 103645559. The reversal of 103645523 is 325546301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325546301 = 23 ⋅14154187.

It is a cyclic number.

It is not a de Polignac number, because 103645523 - 2⁶ = 103645459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103645823) 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, 1205138 + ... + 1205223.

It is an arithmetic number, because the mean of its divisors is an integer number (26513982).

Almost surely, 2^103645523 is an apocalyptic number.

103645523 is a deficient number, since it is larger than the sum of its proper divisors (2410405).

103645523 is an equidigital number, since it uses as much as digits as its factorization.

103645523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410404.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 103645523 is about 10180.6445277301. The cubic root of 103645523 is about 469.7320382923.

The spelling of 103645523 in words is "one hundred three million, six hundred forty-five thousand, five hundred twenty-three".