100307813 has 2 divisors, whose sum is σ = 100307814. Its totient is φ = 100307812.

The previous prime is 100307791. The next prime is 100307819. The reversal of 100307813 is 318703001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99640324 + 667489 = 9982^2 + 817^2 .

It is an emirp because it is prime and its reverse (318703001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100307813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100307819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50153906 + 50153907.

It is an arithmetic number, because the mean of its divisors is an integer number (50153907).

Almost surely, 2^100307813 is an apocalyptic number.

It is an amenable number.

100307813 is a deficient number, since it is larger than the sum of its proper divisors (1).

100307813 is an equidigital number, since it uses as much as digits as its factorization.

100307813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 100307813 is about 10015.3788245877. The cubic root of 100307813 is about 464.6346426729.

The spelling of 100307813 in words is "one hundred million, three hundred seven thousand, eight hundred thirteen".