100344245 has 4 divisors (see below), whose sum is σ = 120413100. Its totient is φ = 80275392.

The previous prime is 100344227. The next prime is 100344253. The reversal of 100344245 is 542443001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542443001 = 4937 ⋅109873.

It can be written as a sum of positive squares in 2 ways, for example, as 28281124 + 72063121 = 5318^2 + 8489^2 .

It is a cyclic number.

It is not a de Polignac number, because 100344245 - 2²⁶ = 33235381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100344245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10034420 + ... + 10034429.

It is an arithmetic number, because the mean of its divisors is an integer number (30103275).

Almost surely, 2^100344245 is an apocalyptic number.

It is an amenable number.

100344245 is a deficient number, since it is larger than the sum of its proper divisors (20068855).

100344245 is an equidigital number, since it uses as much as digits as its factorization.

100344245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20068854.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 100344245 is about 10017.1974623644. The cubic root of 100344245 is about 464.6908879438.

Adding to 100344245 its reverse (542443001), we get a palindrome (642787246).

The spelling of 100344245 in words is "one hundred million, three hundred forty-four thousand, two hundred forty-five".