100449245 has 16 divisors (see below), whose sum is σ = 130074672. Its totient is φ = 74027520.

The previous prime is 100449233. The next prime is 100449259. The reversal of 100449245 is 542944001.

It can be written as a sum of positive squares in 8 ways, for example, as 71944324 + 28504921 = 8482^2 + 5339^2 .

It is not a de Polignac number, because 100449245 - 2⁴ = 100449229 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38585 + ... + 41105.

It is an arithmetic number, because the mean of its divisors is an integer number (8129667).

Almost surely, 2^100449245 is an apocalyptic number.

It is an amenable number.

100449245 is a deficient number, since it is larger than the sum of its proper divisors (29625427).

100449245 is a wasteful number, since it uses less digits than its factorization.

100449245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 100449245 is about 10022.4370788746. The cubic root of 100449245 is about 464.8529152871.

The spelling of 100449245 in words is "one hundred million, four hundred forty-nine thousand, two hundred forty-five".