104911649 has 2 divisors, whose sum is σ = 104911650. Its totient is φ = 104911648.

The previous prime is 104911637. The next prime is 104911663. The reversal of 104911649 is 946119401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 9985600 = 9743^2 + 3160^2 .

It is an emirp because it is prime and its reverse (946119401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104911649 - 2⁸ = 104911393 is a prime.

It is a super-2 number, since 2×104911649² = 22012908191798402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104911619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52455824 + 52455825.

It is an arithmetic number, because the mean of its divisors is an integer number (52455825).

Almost surely, 2^104911649 is an apocalyptic number.

It is an amenable number.

104911649 is a deficient number, since it is larger than the sum of its proper divisors (1).

104911649 is an equidigital number, since it uses as much as digits as its factorization.

104911649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 104911649 is about 10242.6387713323. The cubic root of 104911649 is about 471.6370393196.

The spelling of 104911649 in words is "one hundred four million, nine hundred eleven thousand, six hundred forty-nine".