104920249 has 4 divisors (see below), whose sum is σ = 119908864. Its totient is φ = 89931636.

The previous prime is 104920247. The next prime is 104920253. The reversal of 104920249 is 942029401.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 942029401 = 607 ⋅1551943.

It is a cyclic number.

It is not a de Polignac number, because 104920249 - 2¹ = 104920247 is a prime.

It is a super-2 number, since 2×104920249² = 22016517300444002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104920249.

It is not an unprimeable number, because it can be changed into a prime (104920247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7494297 + ... + 7494310.

It is an arithmetic number, because the mean of its divisors is an integer number (29977216).

Almost surely, 2^104920249 is an apocalyptic number.

It is an amenable number.

104920249 is a deficient number, since it is larger than the sum of its proper divisors (14988615).

104920249 is an equidigital number, since it uses as much as digits as its factorization.

104920249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14988614.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 104920249 is about 10243.0585764214. The cubic root of 104920249 is about 471.6499262511.

The spelling of 104920249 in words is "one hundred four million, nine hundred twenty thousand, two hundred forty-nine".