445111749 has 12 divisors (see below), whose sum is σ = 665109900. Its totient is φ = 286508544.

The previous prime is 445111729. The next prime is 445111769. The reversal of 445111749 is 947111544.

It is an interprime number because it is at equal distance from previous prime (445111729) and next prime (445111769).

It can be written as a sum of positive squares in 2 ways, for example, as 179747649 + 265364100 = 13407^2 + 16290^2 .

It is not a de Polignac number, because 445111749 - 2¹¹ = 445109701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445111729) 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 11 ways as a sum of consecutive naturals, for example, 852444 + ... + 852965.

It is an arithmetic number, because the mean of its divisors is an integer number (55425825).

Almost surely, 2^445111749 is an apocalyptic number.

It is an amenable number.

445111749 is a deficient number, since it is larger than the sum of its proper divisors (219998151).

445111749 is a wasteful number, since it uses less digits than its factorization.

445111749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705444 (or 1705441 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 445111749 is about 21097.6716487863. The cubic root of 445111749 is about 763.5245738916.

The spelling of 445111749 in words is "four hundred forty-five million, one hundred eleven thousand, seven hundred forty-nine".