481609445 has 4 divisors (see below), whose sum is σ = 577931340. Its totient is φ = 385287552.

The previous prime is 481609391. The next prime is 481609451. The reversal of 481609445 is 544906184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 318229921 + 163379524 = 17839^2 + 12782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481609445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48160940 + ... + 48160949.

It is an arithmetic number, because the mean of its divisors is an integer number (144482835).

Almost surely, 2^481609445 is an apocalyptic number.

It is an amenable number.

481609445 is a deficient number, since it is larger than the sum of its proper divisors (96321895).

481609445 is an equidigital number, since it uses as much as digits as its factorization.

481609445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96321894.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 481609445 is about 21945.6019511883. The cubic root of 481609445 is about 783.8476581037.

The spelling of 481609445 in words is "four hundred eighty-one million, six hundred nine thousand, four hundred forty-five".