100031297 has 2 divisors, whose sum is σ = 100031298. Its totient is φ = 100031296.

The previous prime is 100031293. The next prime is 100031303. The reversal of 100031297 is 792130001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97693456 + 2337841 = 9884^2 + 1529^2 .

It is a cyclic number.

It is not a de Polignac number, because 100031297 - 2² = 100031293 is a prime.

It is not a weakly prime, because it can be changed into another prime (100031293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50015648 + 50015649.

It is an arithmetic number, because the mean of its divisors is an integer number (50015649).

Almost surely, 2^100031297 is an apocalyptic number.

It is an amenable number.

100031297 is a deficient number, since it is larger than the sum of its proper divisors (1).

100031297 is an equidigital number, since it uses as much as digits as its factorization.

100031297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 100031297 is about 10001.5647275814. The cubic root of 100031297 is about 464.2073009125.

Adding to 100031297 its reverse (792130001), we get a palindrome (892161298).

The spelling of 100031297 in words is "one hundred million, thirty-one thousand, two hundred ninety-seven".