445142455 has 8 divisors (see below), whose sum is σ = 538070832. Its totient is φ = 353514048.

The previous prime is 445142447. The next prime is 445142461. The reversal of 445142455 is 554241544.

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 445142455 - 2³ = 445142447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445142455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324237 + ... + 325606.

It is an arithmetic number, because the mean of its divisors is an integer number (67258854).

Almost surely, 2^445142455 is an apocalyptic number.

445142455 is a deficient number, since it is larger than the sum of its proper divisors (92928377).

445142455 is a wasteful number, since it uses less digits than its factorization.

445142455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649985.

The product of its digits is 64000, while the sum is 34.

The square root of 445142455 is about 21098.3993468699. The cubic root of 445142455 is about 763.5421307160.

Adding to 445142455 its reverse (554241544), we get a palindrome (999383999).

The spelling of 445142455 in words is "four hundred forty-five million, one hundred forty-two thousand, four hundred fifty-five".