100499999 has 2 divisors, whose sum is σ = 100500000. Its totient is φ = 100499998.

The previous prime is 100499989. The next prime is 100500007. The reversal of 100499999 is 999994001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100499999 - 2¹⁶ = 100434463 is a prime.

100499999 is a modest number, since divided by 99999 gives 1004 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100499989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50249999 + 50250000.

It is an arithmetic number, because the mean of its divisors is an integer number (50250000).

Almost surely, 2^100499999 is an apocalyptic number.

100499999 is a deficient number, since it is larger than the sum of its proper divisors (1).

100499999 is an equidigital number, since it uses as much as digits as its factorization.

100499999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 100499999 is about 10024.9687780062. The cubic root of 100499999 is about 464.9311941975.

The spelling of 100499999 in words is "one hundred million, four hundred ninety-nine thousand, nine hundred ninety-nine".