445031213 has 8 divisors (see below), whose sum is σ = 486652320. Its totient is φ = 403604080.

The previous prime is 445031201. The next prime is 445031269. The reversal of 445031213 is 312130544.

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

It is not a de Polignac number, because 445031213 - 2¹² = 445027117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445031273) 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, 43670 + ... + 52887.

It is an arithmetic number, because the mean of its divisors is an integer number (60831540).

Almost surely, 2^445031213 is an apocalyptic number.

It is an amenable number.

445031213 is a deficient number, since it is larger than the sum of its proper divisors (41621107).

445031213 is a wasteful number, since it uses less digits than its factorization.

445031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96987.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 445031213 is about 21095.7629158085. The cubic root of 445031213 is about 763.4785218427.

Adding to 445031213 its reverse (312130544), we get a palindrome (757161757).

The spelling of 445031213 in words is "four hundred forty-five million, thirty-one thousand, two hundred thirteen".