445641149 has 4 divisors (see below), whose sum is σ = 445686336. Its totient is φ = 445595964.

The previous prime is 445641137. The next prime is 445641167. The reversal of 445641149 is 941146544.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445641149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445641199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779 + ... + 29864.

It is an arithmetic number, because the mean of its divisors is an integer number (111421584).

Almost surely, 2^445641149 is an apocalyptic number.

It is an amenable number.

445641149 is a deficient number, since it is larger than the sum of its proper divisors (45187).

445641149 is a wasteful number, since it uses less digits than its factorization.

445641149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45186.

The product of its digits is 69120, while the sum is 38.

The square root of 445641149 is about 21110.2143286135. The cubic root of 445641149 is about 763.8271569060.

The spelling of 445641149 in words is "four hundred forty-five million, six hundred forty-one thousand, one hundred forty-nine".