100499639 has 2 divisors, whose sum is σ = 100499640. Its totient is φ = 100499638.

The previous prime is 100499617. The next prime is 100499653. The reversal of 100499639 is 936994001.

It is a strong prime.

It is an emirp because it is prime and its reverse (936994001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100499639 - 2²⁴ = 83722423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100499596 and 100499605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100499689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50249819 + 50249820.

It is an arithmetic number, because the mean of its divisors is an integer number (50249820).

Almost surely, 2^100499639 is an apocalyptic number.

100499639 is a deficient number, since it is larger than the sum of its proper divisors (1).

100499639 is an equidigital number, since it uses as much as digits as its factorization.

100499639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 100499639 is about 10024.9508228220. The cubic root of 100499639 is about 464.9306390551.

The spelling of 100499639 in words is "one hundred million, four hundred ninety-nine thousand, six hundred thirty-nine".