100779851 has 2 divisors, whose sum is σ = 100779852. Its totient is φ = 100779850.

The previous prime is 100779829. The next prime is 100779863. The reversal of 100779851 is 158977001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100779851 - 2²² = 96585547 is a prime.

It is not a weakly prime, because it can be changed into another prime (100779251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50389925 + 50389926.

It is an arithmetic number, because the mean of its divisors is an integer number (50389926).

Almost surely, 2^100779851 is an apocalyptic number.

100779851 is a deficient number, since it is larger than the sum of its proper divisors (1).

100779851 is an equidigital number, since it uses as much as digits as its factorization.

100779851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 100779851 is about 10038.9168240403. The cubic root of 100779851 is about 465.3623429291.

The spelling of 100779851 in words is "one hundred million, seven hundred seventy-nine thousand, eight hundred fifty-one".