100243079 has 2 divisors, whose sum is σ = 100243080. Its totient is φ = 100243078.

The previous prime is 100243063. The next prime is 100243139. The reversal of 100243079 is 970342001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100243079 - 2⁴ = 100243063 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100243379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121539 + 50121540.

It is an arithmetic number, because the mean of its divisors is an integer number (50121540).

Almost surely, 2^100243079 is an apocalyptic number.

100243079 is a deficient number, since it is larger than the sum of its proper divisors (1).

100243079 is an equidigital number, since it uses as much as digits as its factorization.

100243079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 100243079 is about 10012.1465730382. The cubic root of 100243079 is about 464.5346699635.

The spelling of 100243079 in words is "one hundred million, two hundred forty-three thousand, seventy-nine".