445949153 has 8 divisors (see below), whose sum is σ = 496813800. Its totient is φ = 397450368.

The previous prime is 445949107. The next prime is 445949159. The reversal of 445949153 is 351949544.

It can be written as a sum of positive squares in 4 ways, for example, as 106357969 + 339591184 = 10313^2 + 18428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445949153 - 2¹² = 445945057 is a prime.

It is a super-2 number, since 2×445949153² = 397741294122834818, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445949159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591068 + ... + 591821.

It is an arithmetic number, because the mean of its divisors is an integer number (62101725).

Almost surely, 2^445949153 is an apocalyptic number.

It is an amenable number.

445949153 is a deficient number, since it is larger than the sum of its proper divisors (50864647).

445949153 is a wasteful number, since it uses less digits than its factorization.

445949153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182931.

The product of its digits is 388800, while the sum is 44.

The square root of 445949153 is about 21117.5082100138. The cubic root of 445949153 is about 764.0030889242.

It can be divided in two parts, 4459491 and 53, that added together give a palindrome (4459544).

The spelling of 445949153 in words is "four hundred forty-five million, nine hundred forty-nine thousand, one hundred fifty-three".