445131121 has 8 divisors (see below), whose sum is σ = 480502080. Its totient is φ = 411094992.

The previous prime is 445131103. The next prime is 445131131. The reversal of 445131121 is 121131544.

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 445131121 - 2¹¹ = 445129073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445131092 and 445131101.

It is not an unprimeable number, because it can be changed into a prime (445131101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333015 + ... + 334348.

It is an arithmetic number, because the mean of its divisors is an integer number (60062760).

Almost surely, 2^445131121 is an apocalyptic number.

It is an amenable number.

445131121 is a deficient number, since it is larger than the sum of its proper divisors (35370959).

445131121 is a wasteful number, since it uses less digits than its factorization.

445131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667415.

The product of its digits is 480, while the sum is 22.

The square root of 445131121 is about 21098.1307465851. The cubic root of 445131121 is about 763.5356503486.

Adding to 445131121 its reverse (121131544), we get a palindrome (566262665).

The spelling of 445131121 in words is "four hundred forty-five million, one hundred thirty-one thousand, one hundred twenty-one".