100103779 has 2 divisors, whose sum is σ = 100103780. Its totient is φ = 100103778.

The previous prime is 100103771. The next prime is 100103807. The reversal of 100103779 is 977301001.

It is a happy number.

It is an a-pointer prime, because the next prime (100103807) can be obtained adding 100103779 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100103779 - 2³ = 100103771 is a prime.

It is not a weakly prime, because it can be changed into another prime (100103771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051889 + 50051890.

It is an arithmetic number, because the mean of its divisors is an integer number (50051890).

Almost surely, 2^100103779 is an apocalyptic number.

100103779 is a deficient number, since it is larger than the sum of its proper divisors (1).

100103779 is an equidigital number, since it uses as much as digits as its factorization.

100103779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323, while the sum is 28.

The square root of 100103779 is about 10005.1876044380. The cubic root of 100103779 is about 464.3193943310.

The spelling of 100103779 in words is "one hundred million, one hundred three thousand, seven hundred seventy-nine".