100490849 has 4 divisors (see below), whose sum is σ = 100691136. Its totient is φ = 100290564.

The previous prime is 100490827. The next prime is 100490881. The reversal of 100490849 is 948094001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100490849 - 2¹⁶ = 100425313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100490899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99389 + ... + 100394.

It is an arithmetic number, because the mean of its divisors is an integer number (25172784).

Almost surely, 2^100490849 is an apocalyptic number.

It is an amenable number.

100490849 is a deficient number, since it is larger than the sum of its proper divisors (200287).

100490849 is an equidigital number, since it uses as much as digits as its factorization.

100490849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200286.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 100490849 is about 10024.5124070949. The cubic root of 100490849 is about 464.9170839170.

The spelling of 100490849 in words is "one hundred million, four hundred ninety thousand, eight hundred forty-nine".