104991449 has 2 divisors, whose sum is σ = 104991450. Its totient is φ = 104991448.

The previous prime is 104991437. The next prime is 104991461. The reversal of 104991449 is 944199401.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (104991437) and next prime (104991461).

It can be written as a sum of positive squares in only one way, i.e., 96668224 + 8323225 = 9832^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 104991449 - 2⁴ = 104991433 is a prime.

It is a super-2 number, since 2×104991449² = 22046408726239202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104991499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52495724 + 52495725.

It is an arithmetic number, because the mean of its divisors is an integer number (52495725).

Almost surely, 2^104991449 is an apocalyptic number.

It is an amenable number.

104991449 is a deficient number, since it is larger than the sum of its proper divisors (1).

104991449 is an equidigital number, since it uses as much as digits as its factorization.

104991449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 104991449 is about 10246.5335113881. The cubic root of 104991449 is about 471.7565910169.

The spelling of 104991449 in words is "one hundred four million, nine hundred ninety-one thousand, four hundred forty-nine".