445131 has 6 divisors (see below), whose sum is σ = 642980. Its totient is φ = 296748.

The previous prime is 445103. The next prime is 445141. The reversal of 445131 is 131544.

It is a happy number.

It is not a de Polignac number, because 445131 - 2¹⁷ = 314059 is a prime.

It is a super-2 number, since 2×445131² = 396283214322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (445141) 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 5 ways as a sum of consecutive naturals, for example, 24721 + ... + 24738.

2⁴⁴⁵¹³¹ is an apocalyptic number.

445131 is a deficient number, since it is larger than the sum of its proper divisors (197849).

445131 is a wasteful number, since it uses less digits than its factorization.

445131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49465 (or 49462 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 445131 is about 667.1813846324. The cubic root of 445131 is about 76.3535581165.

Adding to 445131 its reverse (131544), we get a palindrome (576675).

It can be divided in two parts, 445 and 131, that added together give a square (576 = 24²).

The spelling of 445131 in words is "four hundred forty-five thousand, one hundred thirty-one".