104945749 has 4 divisors (see below), whose sum is σ = 106383436. Its totient is φ = 103508064.

The previous prime is 104945747. The next prime is 104945761. The reversal of 104945749 is 947549401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39627025 + 65318724 = 6295^2 + 8082^2 .

It is a cyclic number.

It is not a de Polignac number, because 104945749 - 2¹ = 104945747 is a prime.

It is a super-2 number, since 2×104945749² = 22027220466342002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104945741) 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 in 3 ways as a sum of consecutive naturals, for example, 718734 + ... + 718879.

It is an arithmetic number, because the mean of its divisors is an integer number (26595859).

Almost surely, 2^104945749 is an apocalyptic number.

It is an amenable number.

104945749 is a deficient number, since it is larger than the sum of its proper divisors (1437687).

104945749 is an equidigital number, since it uses as much as digits as its factorization.

104945749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437686.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 104945749 is about 10244.3032461949. The cubic root of 104945749 is about 471.6881333624.

The spelling of 104945749 in words is "one hundred four million, nine hundred forty-five thousand, seven hundred forty-nine".