445145312331 has 24 divisors (see below), whose sum is σ = 685396608000. Its totient is φ = 277585609392.

The previous prime is 445145312317. The next prime is 445145312371. The reversal of 445145312331 is 133213541544.

445145312331 is a `hidden beast` number, since 4 + 4 + 5 + 1 + 4 + 5 + 312 + 331 = 666.

It is not a de Polignac number, because 445145312331 - 2²³ = 445136923723 is a prime.

It is a super-2 number, since 2×445145312331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445145312371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16462371 + ... + 16489388.

It is an arithmetic number, because the mean of its divisors is an integer number (28558192000).

Almost surely, 2^445145312331 is an apocalyptic number.

445145312331 is a deficient number, since it is larger than the sum of its proper divisors (240251295669).

445145312331 is a wasteful number, since it uses less digits than its factorization.

445145312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32951863 (or 32951860 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

Adding to 445145312331 its reverse (133213541544), we get a palindrome (578358853875).

The spelling of 445145312331 in words is "four hundred forty-five billion, one hundred forty-five million, three hundred twelve thousand, three hundred thirty-one".