445344131 has 4 divisors (see below), whose sum is σ = 445394712. Its totient is φ = 445293552.

The previous prime is 445344089. The next prime is 445344139. The reversal of 445344131 is 131443544.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 445344131 - 2¹⁴ = 445327747 is a prime.

It is a super-2 number, since 2×445344131² = 396662790032290322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445344094 and 445344103.

It is not an unprimeable number, because it can be changed into a prime (445344139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8261 + ... + 30966.

It is an arithmetic number, because the mean of its divisors is an integer number (111348678).

Almost surely, 2^445344131 is an apocalyptic number.

445344131 is a deficient number, since it is larger than the sum of its proper divisors (50581).

445344131 is a wasteful number, since it uses less digits than its factorization.

445344131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50580.

The product of its digits is 11520, while the sum is 29.

The square root of 445344131 is about 21103.1782203534. The cubic root of 445344131 is about 763.6574233013.

Adding to 445344131 its reverse (131443544), we get a palindrome (576787675).

It can be divided in two parts, 4453 and 44131, that added together give a palindrome (48584).

The spelling of 445344131 in words is "four hundred forty-five million, three hundred forty-four thousand, one hundred thirty-one".