100320249 has 8 divisors (see below), whose sum is σ = 135059392. Its totient is φ = 66230640.

The previous prime is 100320211. The next prime is 100320257. The reversal of 100320249 is 942023001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100320249 - 2⁸ = 100319993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100320289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162022 + ... + 162639.

It is an arithmetic number, because the mean of its divisors is an integer number (16882424).

Almost surely, 2^100320249 is an apocalyptic number.

It is an amenable number.

100320249 is a deficient number, since it is larger than the sum of its proper divisors (34739143).

100320249 is a wasteful number, since it uses less digits than its factorization.

100320249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324767.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 100320249 is about 10015.9996505591. Note that the first 3 decimals coincide. The cubic root of 100320249 is about 464.6538434293.

The spelling of 100320249 in words is "one hundred million, three hundred twenty thousand, two hundred forty-nine".