445136546 has 4 divisors (see below), whose sum is σ = 667704822. Its totient is φ = 222568272.

The previous prime is 445136539. The next prime is 445136561. The reversal of 445136546 is 645631544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 444745921 + 390625 = 21089^2 + 625^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111284135 + ... + 111284138.

Almost surely, 2^445136546 is an apocalyptic number.

445136546 is a deficient number, since it is larger than the sum of its proper divisors (222568276).

445136546 is a wasteful number, since it uses less digits than its factorization.

445136546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222568275.

The product of its digits is 172800, while the sum is 38.

The square root of 445136546 is about 21098.2593120854. The cubic root of 445136546 is about 763.5387521793.

The spelling of 445136546 in words is "four hundred forty-five million, one hundred thirty-six thousand, five hundred forty-six".