100523345 has 16 divisors (see below), whose sum is σ = 130237632. Its totient is φ = 74043840.

The previous prime is 100523333. The next prime is 100523347. The reversal of 100523345 is 543325001.

It is not a de Polignac number, because 100523345 - 2¹⁰ = 100522321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100523345.

It is not an unprimeable number, because it can be changed into a prime (100523347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27050 + ... + 30540.

It is an arithmetic number, because the mean of its divisors is an integer number (8139852).

Almost surely, 2^100523345 is an apocalyptic number.

It is an amenable number.

100523345 is a deficient number, since it is larger than the sum of its proper divisors (29714287).

100523345 is a wasteful number, since it uses less digits than its factorization.

100523345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 100523345 is about 10026.1331030463. The cubic root of 100523345 is about 464.9671923514.

Adding to 100523345 its reverse (543325001), we get a palindrome (643848346).

The spelling of 100523345 in words is "one hundred million, five hundred twenty-three thousand, three hundred forty-five".